I have prince of persia rival swords for the PSP and am stuck on the 7th sand gate. Please help!!!!?

I'm stuck in the 7th sand gate the one where u turn into the dark prince and and have to cross all the fire/lava stuff. i figured out that u have to wall-run, then chain-swing, and after some more jumping and and creeping around on ledges i can make it to the pillar in the middle. after that, i'm totally lost. i've been stuck here for the last two weeks, so if anyone's beaten the game/level can give me walkthrough? thanx in advance!! (=