apache / rewrite problem


i've installed elgg on my site using sub folders.... so it looks like this:


i want to redirect it to

www.mysite.com  ...so that when people go to my site, elgg shows up right away. i've been trying to edit the .htaccess file for about 10 hours now and i can't get the rewrite/redirect thing to work. i have no idea what command goes where, i've never done this before and i've been looking all over the internet but couldn't really find anything to fix it.

i'd really appreciate it, if someone could help me out here.