OK, Pic Basic Pro 2.6L will compile the project
Version 2.60A gives these errors:
Unknown Processor(18F26k22)
Cannot open file (Include file "Pic18F26K22.inc" not found)
Processor type is undefined

Etc...
Compiler Version 3.1.0.4 gives these errors
Warning: Unable to open INCLUDE file DT INTS-18.BAS
Warning: unable to open INCLUDE file REENTERPBP-18.BAS
and a whole host of ASM errors associated


Anyone have an idea of what to do now?