Hi, Welcome to S101.
I've used winpc sign(letter12) for 3 years. Between the chinese hardware ( Creation CT630) and the French/English software it was a bit of a scramble to get it all together, but I must say it is very capable software. I really don't know much about the '07 version. The older version still works well for me.
You may want to use Corel X3 for some design features then convert to .eps and export to WinPC for cutting.
I didn't have much luck contacting the people at SignMax for support.
They do have a discussion forum where you can get some additional info.
For entry level software, you can't do much better.
Regards...Ken