Mac OS X, webserver permissions

So i'm running Mac OS X 10.5.6 and the webserver it "comes" with, Apache and php.

I'm not really a mac guru and having problem getting the right permissions for folders and such. I've tried changing the rights and all that to simply create files and folders but without any great success.

Anyone that could point me in the right direction?

*mods* feel free to move this to the right forum, wasn't really sure where to post it.

cheers Hjalmar