Turntable belt/pulley help- kind of urgent

So, I got a Denon DP 300F a few weeks ago. until today I didn't have a cartridge installed, so I didn't play it. After lots of hassle, I bought and installed a Shure M97XE cartridge, aligned it, etc. Then I tried to play a record but the platter would not spin. I googled the manual, and apparently there was something wrong with the belt. So I took the belt out, rearranged it around the pulleys about a dozen different ways, and still nothing. Can someone please explain to me how to position the belt so I can get my platter working??
There's a link to the manual here: http://a248.e.akamai.net/pix.crutchfield.com/Manuals/033/033DP300F.PDF

please help! any help at all would be greatly appreciated. :) (also, I'm a noob so if I've done anything stupid but taking the belt out, etc, cut me some slack).