Dumping firmware/software...and/or reflashing??

Excellent! Welcome aboard!

I do not have any experience with the x7 classic. I would not recommend using this software on the x7 classic eGrip. I'm not sure if it uses the same chip as the Phenom, so the programming here may be useless. If you can, please take a picture of the board (as detailed as possible - all sides of the board) and we might be able to figure out if it will work. Is your board from Tippmann, APE, or another manufacturer?

If it does use the same chip, you can buy new chips to test with at several vendors (digikey, mouser, ...).

This is the chip that goes in the Phenom:

Since the chip is rather small and difficult to test with, you can get the same chip in DIP format to fit in a standard breadboard (warning: this chip is only for testing the programming, this chip will not fit in the marker):