Flashgot uses absolute paths for custom downloader.. help?

I have portable Firefox and installed the Flashgot addon so I could use a custom Downloader (eepget from I2P). It works BUT Flashgot puts in an absolute path to the eepget.exe and doesn't work when I move portable Firefox.

Question is, is there any way around this so Firefox, Flashgot and eepget can all be used portably?

I can't seem to find ANY information on this anywhere that fixes this issue.