The marked took most of those app's down, and basically made them for a lack of better terms "Illegal" on the market. I had one I used too, and when my sd card took a crap on me, I lost it. From time to time I would search the market to see if one had gotten thru, and recently found one that did, and have been using that since, but noticed it was gone from the market a day later.
My advise, if you manage to snag a similar program from the market, use a program like Astro to back it up on your SD card, and make sure to have a backup of your SD card on your home computer, so if anything happens to either your phone or SD card, you still have all your programs and what not. And yes, with Astro you are able to make full back ups of all your apps. It's nice with a phone like ours, you can have it backed up, and just install whatever program when you want to use it to save space.
