Skuid Page XML for viewing a Case as a Force.com Site Guest User, that allows you to upload Attachments to the Case, as well as to the named "skuid__Photo__c" Lookup to the skuid__Image__c (File) object

ViewCaseWeb.xml

<skuidpage showsidebar="false" showheader="false" tabtooverride="Case">
   <models>
      <model id="Case" limit="1" query="true" createrowifnonefound="false" sobject="Case">
         <fields>
            <field id="CaseNumber"/>
            <field id="CreatedDate"/>
            <field id="Subject"/>
            <field id="Description"/>
            <field id="Status"/>
            <field id="skuid__Photo__c"/>
            <field id="skuid__Photo__r.Name"/>
            <field id="skuid__Photo__r.skuid__AttachmentId__c"/>
         </fields>
         <conditions>
            <condition type="param" enclosevalueinquotes="true" operator="=" field="Id" value="id"/>
         </conditions>
      </model>
      <model id="Attachments" limit="100" query="true" createrowifnonefound="false" sobject="Attachment">
         <fields>
            <field id="ContentType"/>
            <field id="BodyLength"/>
            <field id="Name"/>
            <field id="Description"/>
         </fields>
         <conditions>
            <condition type="modelmerge" value="" field="ParentId" operator="=" model="Case" enclosevalueinquotes="true" mergefield="Id" novaluebehavior="noquery"/>
         </conditions>
      </model>
      <model id="CaseComments" limit="100" query="true" createrowifnonefound="false" sobject="CaseComment">
         <fields>
            <field id="CommentBody"/>
            <field id="CreatedDate"/>
         </fields>
         <conditions>
            <condition type="modelmerge" value="" field="ParentId" operator="=" model="Case" enclosevalueinquotes="true" mergefield="Id" novaluebehavior="noquery"/>
         </conditions>
      </model>
   </models>
   <components>
      <pagetitle model="Case">
         <maintitle>{{#CaseNumber}}{{CaseNumber}}{{/CaseNumber}}{{^CaseNumber}}You do not have permission to view this Case.{{/CaseNumber}}</maintitle>
         <subtitle>
            <template>{{Model.label}}</template>
         </subtitle>
         <actions/>
      </pagetitle>
      <panelset type="standard">
         <panels>
            <panel width="300" type="right">
               <components>
                  <file editable="true" storeas="field" displayas="image" deleteable="false" model="Case" defaultimage="org" idfield="skuid__Photo__c" label="Case Photo"/>
               </components>
            </panel>
            <panel>
               <components>
                  <basicfieldeditor showsavecancel="false" showheader="true" model="Case" mode="read">
                     <columns>
                        <column width="50%">
                           <sections>
                              <section title="Basics">
                                 <fields>
                                    <field id="CaseNumber"/>
                                    <field id="Subject"/>
                                    <field id="Description"/>
                                 </fields>
                              </section>
                           </sections>
                        </column>
                        <column width="50%">
                           <sections>
                              <section title="System Info">
                                 <fields>
                                    <field id="CreatedDate"/>
                                    <field id="Status"/>
                                 </fields>
                              </section>
                           </sections>
                        </column>
                     </columns>
                  </basicfieldeditor>
               </components>
            </panel>
         </panels>
      </panelset>
      <tabset rememberlastusertab="true" defertabrendering="true">
         <tabs>
            <tab name="Upload Files">
               <components>
                  <file storeas="record" displayas="filename" model="Case" label="Upload some STUFF"/>
                  <skootable showconditions="true" showsavecancel="true" searchmethod="server" searchbox="true" showexportbuttons="false" pagesize="10" createrecords="true" model="Attachments" buttonposition="" mode="read">
                     <fields>
                        <field id="Name"/>
                        <field id="BodyLength"/>
                        <field id="ContentType"/>
                        <field id="Description"/>
                     </fields>
                     <rowactions>
                        <action type="edit"/>
                        <action type="delete"/>
                     </rowactions>
                     <massactions usefirstitemasdefault="true">
                        <action type="massupdate"/>
                        <action type="massdelete"/>
                     </massactions>
                     <views>
                        <view type="standard"/>
                     </views>
                  </skootable>
               </components>
            </tab>
            <tab name="Case Comments" loadlazypanels="true">
               <components>
                  <skootable showconditions="true" showsavecancel="true" searchmethod="server" searchbox="true" showexportbuttons="false" pagesize="10" createrecords="true" model="CaseComments" buttonposition="" mode="read">
                     <fields>
                        <field id="CommentBody"/>
                        <field id="CreatedDate"/>
                     </fields>
                     <rowactions>
                        <action type="edit"/>
                        <action type="delete"/>
                     </rowactions>
                     <massactions usefirstitemasdefault="true">
                        <action type="massupdate"/>
                        <action type="massdelete"/>
                     </massactions>
                     <views>
                        <view type="standard"/>
                     </views>
                  </skootable>
               </components>
            </tab>
         </tabs>
      </tabset>
   </components>
   <resources>
      <labels/>
      <css/>
      <javascript/>
   </resources>
</skuidpage>