I don't know if this was already posted and I am sorry if it was, but I would just like to show people how to sideload apps NOT using root and in very simple words. 1. Download Droid Explorer for your system. (de - Release: Droid Explorer 0.8.7.0 Beta) 2. Now, go to your phone. Settings> Applications> Development > USB Debugging. 3. Make sure you downloaded the drivers for the captivate then plug in your phone and select PC connect and mount the phone. 4. Now open Droid Explorer and connect the device. Right click and select batch install. 5. Now a screen should pop up and you should select the APKs you would like to install and it is self explanatory from there on out. That should do it, sorry if this was posted somewhere else or something but I kind of figured this out on my own even though I am not a very techy guy.