Overgrows is very simple... it does requrie .htaccess, but just cause your on a virtual host doesn't mean you can't use .htaccess... i'm on a virtual host and overgrows hack works good for me. Plus, overgrows hack allows every single thread / post on your entire forum to be spidered, where as, fasforward's will only get google to spider threads that were posted after you implment the hack (which isn't good if you have alot of posts). I just like overgrows much better cause it requires no mods of the database, no template mods and no file mods... you just upload the 3 files to a new directory and change a few variables around in them and it will draw the posts directly from the database. Also, since vb3 will be out soon, you don't want to hack up your board too bad and from what I understand, fastforward's hack is quite a bit more extensive than overgrows. To see a working version of overgrows hack on my board, visit
http://www.battleforums.com/archive - Works good for me