So I deleted one game....and it deleted all my games!

So I recently put worms and oregon trail on my phone using someones ultimate gaming list thing in the games forum, and they worked ok. Only thing is tho, they were actually named 'orgeon trail.jar' and 'worms.jar' and, they both had the icon for the oregon trail for some reason. Both the games worked, but this was just pissing me off, as all my other games/apps had the normal names without the .jar extension on the end, and they all had the right icons....so I deleted the worms and oregon trail....well I noticed when I did this it removed my icons for the rest of my apps and games (they were still there just the icons were gone) so I decided to update the java DB just like you would when installing a new game to see if it helped....well it didnt.
IT DELETED EVERY UNLOCKED GAME/APP ON MY PHONE Cry
this is very depressing....can someone please tell me why this happened? and how I can avoid it in the future? Sad

thanks

Actually you know what, I think I might have forgotten to make a seperate folder for them when I installed the games....so this would explain why they were named .jar, and had the same icons...I deleted them from my phone, which would also explain why it deleted everything...because they were all in the same folder......LOL