unfortunately you wont be able to upgrade to 3.xx as there was a hardware change to get into the new software. the max 2.xx software is 2.11.05 for the old cpu. you'll need to swap out the cpu to get into the 3.xx software.
also i have tried multiple times to extract data from a 2.xx machine to get a hard copy for reference, but i have had no luck in doing so.