x42 can you use any touch pen and/or your finger on the tablet?

[drgiggles345]

I just purchased a x41 tablet pc but it didn't come with the pen.  I bought a cheap pen made for a iphone off ebay will that work. I have tried using my fingers to select things as well. No luck! Is there a special pen that "has" to be used???Or is fingers or cheap pen acceptable. If you are able to use your fingers or cheap pen how do i set it up to work? I'm using windows 7. Thank you!