transfer from domain.com/subfolder

I’ve searched a lot (aparently not enough!) and i havent find a solution to this domain issue.

I have WP 2.6 installation running smoothly on https://blogname.server2.com and it is hosted on godaddy. It is a copy of a previous version of the same, hosted somewhere else on https://www.blogname.com/blog

Via index.html on blogname.com and blogname.com/blog i′ve been able to manage the forwarding to blogname.server2.com but when people looks for previous post of mine (old permalinks) on google or bookmarks these obviously dont show.

what should i do here? i know i should try on a 301 or 302 editing .htaccess on blogname.com and blogname.com/blog, the thing is that i′m afraid that images and stuff or old posts dont load the right way on blogname.server2.com

by the way, thepermalink structure is the same on both, i just need a way so people who goes to https://www.blogname.com/blog/blablabla are correctly forwarding to blogname.server2.com/blablabla including files, posts, pictures, pages and stuff.