Help with The Philosopher bass tab

[Z0002]

Hi everyone,
First of all, my english sucks so forgive me for the mistakes
I was trying to make Death's The Philosopher in GP5 but when the final bass solo start I can`t do it. The tab is from Guitarworld, so it seems to be the official one

http://tabs.guitarworld.com/tabs/gwtabpage/1226/1366/the-philosopher

Here is the tab, I uploaded it to Megaupload
http://www.megaupload.com/?d=GQ0ZQEP2