O2 blueroom

When I first bought the cocoon I loved it, it had everything I needed, but now I am starting to find a few faults.
1. I had made a custom SMS alert tone, I put it on the cocoon and set it as my alert tone, but then when I get texts it doesn’t play the whole tone, only the first few seconds of it, anybody have a fix?

2. My friends send me .jar games, the cocoon supports java games and apps, but when I try to open the file, it says file type not supported, again, anybody got a fix?

Abe