Okay, here are the Hijack-v384 kernels for upgraded players:

http://rtr.ca/hijack.mk2-16mb.zImage
http://rtr.ca/hijack.mk2a-32mb.zImage

These will NOT work on ordinary (non-modified) players.
Included in these is a memory test for the newly expanded chips. If this fails, you'll know it from watching the serial logs, and can use the info it dumps to figure out which pins need resoldering.

Also required (before the kernel change) is Hugo's e000 flash update. I would suggest that this update be installed ONLY on upgraded players, not non-upgraded players -- because I may use it to test for upgrades in the kernel some time in the future.

Hugo's e000 update is also available here:

http://rtr.ca/flash_0e000.extramem

To install the e000 update, just FTP to the player (running any recent Hijack), cd to /proc, and put the flash file on top of "flash_0e000". It will install instantly, and is permanent once installed.

Cheers