Update 12 APR 12:
I received the weather balloon and I also got the Canon camera today. I was able to load the hack software onto it so it can boot from that now. I also already got a custom script working so that it auto-takes photos. Next up will be modifying the GPS phone with an external antenna and testing the camera shots and battery life with lithium batteries. One more somewhat big hurdle down now that I have the hack software working on the camera. Holy crap does it open up a HUGE amount of additional settings you would have never thought you could have on a point and shoot cam. For those that may be into photography you might want to check it out. Allot of stuff that I don't understand.