I'm pretty sure Litsoft made some specific changes in the AcrossLite software so that cryptic puzzles would be supported. If all you're trying to add support for, at this time, is viewing of the notepad, you might be better off finding a standard crossword puzzle with a notepad entry.

On another (related) note, I see that the Litsoft home page is bragging about a new (reasonably priced) PDA version. Unfortunately, it runs on Windows Mobile Pocket PC. :/

Maybe they'd be willing to sponsor development of an ARM-based version, so our Nokia tablets can have an "official" AcrossLite binary...