Music Learning Game Completion

I am a Piano Teacher and for some time I have wanted to develop a game which will help pupils of all ages to enjoy learning the basics of music. The game has been developed to the extent that it has been test launched on Second Life but there are a few things that need to be corrected. I paid all the agreed amounts for each milestone and paid the full amount for the final milestone just prior to the test launch. Unfortunately the Programmer/ Scripter from Bangladesh has disappeared and I cannot get any responses from him. I have been trying for over 6 weeks so I now urgently need to find someone to sort out these, what seem to be fairly minor, problems and any ongoing problems which might appear down the line. The main problem is that the time clock does not count down accurately and consistently. The game has been programmed in Linden Scripting Language (LSL) so it needs to be someone who is able to work in this format on an ongoing hourly basis to sort out the problems now and as they may arise please. I look forward to hearing from you.