That sucks. From hearing about other people's experiences, you seem to need some patience to get it to work. Make sure you read through the entire thread. Also, if you haven't done this already . . . after you've swapped the two fstab files with the ones I uploaded, try dropping the install-recovery.sh into the /etc directory. Then, reboot and make sure the eDGe correctly recognizes your partitions before you jump into the Link2SD program.
Is Link2SD even recognizing your partition, out of curiosity?