Shoutbox

There are less and less free hosts offering space with PHP enabled. It's  hard to find one that had PHP as well as MySQL because you need those two for myBB.

SO you need to either:
a. find someone who has his own account with a webhost (or get your own)
b. try it on your computer! all you need is Linux (or Windows), Apache webserver, MySQL and PHP. It's fun having your own webserver and all... at least i thought it was ^^