gistfile1.js

// ==UserScript==
// @name           AutoPagerize 'show everything by me' on Tumblr
// @namespace      http://d.hatena.ne.jp/tily/
// @include        http://www.tumblr.com/show/everything/by/me
// @include        http://www.tumblr.com/show/everything/by/me/*
// ==/UserScript==
var rewriteNextLink = function(doc) {
    var a = Minibuffer.$X('id("pagination")/a[last()]', doc)[0]
    a.href = a.href.replace(
        /dashboard\/(\d+)\/\d+/,
        "show/everything/by/me/$1"
    )   
}
//rewriteNextLink(document)
window.AutoPagerize.addDocumentFilter(rewriteNextLink)