You can try one click vBulletin install with fantastico. Look for fantastico in your hosting provider. Also there are lots of forum scripts like phpBB which is free.... Hope this helps.
Yeah right, have you even USED fantastico? There is no way you're installing vBulletin through fantastico legally. They wouldn't have it. Each vB install is tied directly to the license it's issued under, so this would just not be possible.
Sorry I tried many scripts with fantastico, (though only once) may be I'm messing up with phpBB. thanks guys for the update.....My apologies to you all.