Originally Posted by Cheyanne
I had the same problem. I searched MTP support and found a link to Microsoft download center and downloaded a Media Transfer Protocol Porting Kit. I also updated Media center to the newest one. The Porting kit changed the way the Kindle shows in "my computer" and now I can just open it to the book folder and it lets me copy my mobi files with no problem. Here's the MS site for the download for anyone else with Windows XP having problems with the Kindle Fire.
I still use Calibre for my regular Kindle and my daughter's Nook, it's a great program.
I tried the link but the page won't even load, are you sure it is the correct link? Thanks anyway