I don't want to sound negative but the Zaurus has a very steep learning curve. I am sure the people on this forum will happy to help you but you have to be prepared absorb a lot of stuff. If you are confortable with the Palm platform, you might be better off getting a Palm. I don't know where you live, but I saw refurbished Palms for sale for $50 at Fry's a few weeks ago.
To expand in what Craig said above, go to your desktop computer (PC) and launch the Qtopia program. On the top of the window there should be a line of menus "file, edit,..., help". Click on the help and there should be a option "about". Click on that and read what it says. Come back here and tell us what you read. Hopefully that will answer the question of which version of Qtopia you have.
Felipe