for those suffering from the "installing causes reboot" problem, the following dramatically reduced the chance of a reboot for me:

1. unmout easy debian
2. fsck.ext2 <your easy debian file>
3. if step 2 produces errors go back to a previous backup that is clean, or the original image
4. install only using synaptic
5. synaptic doesn't remember your setting, so every time you start it, reset the following settings:
A. settings->preferences->GENERAL->consider recommended packages as dependencies-> UNTICK THIS
B. settings->preferences->FILES->delete downloaded packages after installation->TICK THIS , and press the DELETE CACHED PACKAGES button
C. settings->preferences->DISTRIBUTION->prefer versions from TESTING (make sure 'prefer highest version' is not set as this is what causes most reboots in my opinion
D. press OK and you should be good to go.

After you have installed some software, umount easy debian , fsck it as above and if it's clean back it up. keep doing this and when you hit some software that reboots your phone while installing, consider your easy debian installation broken and restore the last backup.

Simples:-)