Just bought a DSF3000

and after talking to dreamscape on the phone and them telling me I just had to unlock the unit and it would be ok.
The previous owner used it on a 2002 thunder and my car is a '99 millennium.He told me there were 4 lives left after only using it once.
Just tried it and I think I may have wiped the chip in the ECU.
When I tried to load a tune,it just failed after about 70% of downlaoding giving an error message.
I then put it back to stock but now there is absolutely nothing when I turn the key,just lots of lights on the dash.
Any help or ideas to get this sorted would be appreciated............
Paul