52151 Mod rewrite to SE friendly URL

I am after a mod_rewrite to my site at [login to view URL] to convert it so SE friendly URLs. I believe this will involve an .htaccess file plus modification of three or four PHP files. The [login to view URL] page will need to be modified so that the category links point to the new URLs. Currently the category URLs are as follows: /[login to view URL] The [login to view URL] will also need to be modified so that the category links also point to the new URLs. Also, the lower category pages point to category details pages as follows: /[login to view URL] These links will also need to be modified. Also, the category details pages currently link to resource details pages as follows: /[login to view URL] These links will also need modifying. Should you rrequire more information, please ask.