Add debian repository.
conf
set system package repository squeeze url http://ftp.jp.debian.org/debian/
set system package repository squeeze distribution squeeze
set system package repository squeeze components 'main contrib non-free'
set system package repository squeeze-lts url http://ftp.jp.debian.org/debian/
set system package repository squeeze-lts distribution squeeze-lts
set system package repository squeeze-lts components 'main contrib non-free'
commit
save
sudo apt-get update
install openssl 0.9.8o-4squeeze18
sudo apt-get install openssl=0.9.8o-4squeeze18 libssl0.9.8=0.9.8o-4squeeze18
/usr/lib/libcrypto.so.0.9.8 does not belongs to openssl package.