Thank you fe50
Zeb: You probably figured it out by now but I used the method where you boot and lock the card. I used cardtricks in a windows xp vmware emulation to load it. (I was able to use all the needed tools, chdk-pt and chdk-shell, in vmware so i can recommend it.)
I poked around and added support for extra long exposure(for 1.00b). Works with 120 seconds, haven't tested it very much, but seems to work with 10minutes as well.
It is only experimental, since I don't know what I'm doing, but i will add the source for it here if someone is interested. Note: If you build it you also need to uncomment this line in platform_camera.h
#define CAM_EXT_TV_RANGE 1
The long exposure can probably quite easily be added to 1.00c as well.
Also adding the test build to this post.