where are my mod_rewrite rules?

where are my mod_rewrite rules?

have imported gallery 2.3 to gallery 3.02 (fresh install)via the Gallery2 Import module and everything is running just fine.
it is installed in a folder that has the same name as the old renamed folder(not deleted as of yet) as per instructions.
the only problem is when i now hit links on pages that were previously linked to the old gallery i get a not found error.
i am sure that is because i did not add the mod_rewrite rules to the .htaccess file. now i don't know where to get them nor how to add them to the htaccess file. i did read that if i go to that module and click on it the rules will be at the bottom but that has not worked for me. nothing now happens when i click on the import module.
thanx for any help.