My download gets to 96%, I go off and do something. When I get back my download is at 29%. Whats up with that?

A wild guess is if you don't check the "clear finished and aborted transfers" it might think you still want to download and over write the file.

it was checked and this has happened to my last 3 downloads

yeh I have had the same problem with some of my downs
it whent to 100% then jumpt back to 56%
and I watch it up to 100 again then it jumped back to 56
The 3 time I canceld the downl
It have happends about 3 times with diffrent files
Strange

when downloading, files are saved in segments. if the segments do not fit together, they are dropped. this is just one of the quirks of xolox and p2p services that use this method. that is why your file may go all the way to 96% and then drop. This helps ensure that you get correct files. There is nothing worse then downloading damaged or incorrect files.

How come my download speed is slower than the 5 people I'm uploading to ?

because the person that you are dowloading from is sending it slower than what you are uploading.