I just found a Samsung Galaxy Tab GT-P1010 running on firmware 2.2.1. It seems to be in perfect working order but I am wondering how to update the operating system and do a few other things. I reset the device to factory default and the Play Store disappeared! How do I get that back? Also, I know that Kies is used for doing a lot of these types of things. Which version should I use? Is it possible to download a backward compatible version for this device? Thanks for any help you can offer!