Try connecting to the 'Squirt in HyperTerminal.

 

how do I do that?

 

Step 26
Assembly Guide - MegaSquirt^® V3.0 Main Board

 

ok there seems to be a lot of good stuff in the maga manule about this so next time I have a nice day outside I will have to try doing what the manule says. it all so said about cerial to usb cables and how some ppl have had problems with them. hopfully i can get it connected without going through 2 much! I mean it was connecting fine and then i moved that one jumper to make the cas work and then it wouldnt connect.

 

Yep, often RTFM helps.