New optiboot; beta testers welcome...

Hello. I've found the news right now and then I've tried to use these sketchs but I am having some issues trying toi compile them.

FuseBytes:
I got:
"pgm_read_byte" was not declared in this scope
at line 83

OptiLoader:
I got:
variable or field "read_image" declared void

I use:
Arduino IDE 0022 + Arduino Tiny Cores
OS: Xubuntu 11.04

EDIT:
I didn't download all of your mod-IDE software... only the sketches, so maybe this could be the explanation of the errors... maybe...