ChipsterMP3

So, I have this Samsung YH 820 MC MP3 player. I have loaded music onto it with my Vista laptop. It is not showing up on my MP3 player. So I went back to my old computer with XP Windows, and it is now saying that I have an outdated version of the devices software and it is incompatible. Samsung's website doesnt offer a Vista driver download. Also, googling- I tried the first search result about a driver download and all it gives me is a few files that are worthless. I tried to "format" it. Which deleted all of my old music. Now, it wont let me do anything because I need to use the utility repair. WHICH_ doesnt recognize my device as being there. I downloaded Napstar as Samsung says I need to do inorder to repair. BUT- I have to pay to subscribe. It wont let me load music to it (drag it into the library from my WIndows Media library)...so basically- I feel screwed having this MP3 player. I spent much time looking for one I liked (this was in 2005...and now it is incompatible!Any help?