need help. mm is killing me

[shockednitro]

i just bought my mm from ebay guy said it was only used once i get it and it looks kinda beat up so i hook it up and manually beeped programmed it (yeah that sucks, no usb go figure), and presto my slash was flying on some intellect 4200 and a 7700 motor so i put it away find my wife usb for her digital cam. install cc link on vista 32 and i plug in the controller two green squares so were good i tried changing some setting hit update and halfway thru my screen stop and says it doesn't recognize usb device and needs a driver and cuts the link to the Esc. now i unplugged everything and throw a pack in it and nothing just the red led stays on and dim very dim and thats it nothing. steering is fine but no throttle no beeps nothing not a sound and after plugging it in and unplugging like 100 times the computer wont even recognize it anymore and now i have a really nice,expensive and steerable paper weight.
has this happened to any one else, what it feels like is that the firmware from the esc has been deleted and now its ____???? so what can i do.
i'm not new to castle but this one is kicking my a$$
anything any idea ill listen. i wanna see if there's something i can do before i try to blow a gasket on the guy that sold i to me and get my money back.
please help i would really appreciate it guys i've read these forums for a while now and you all sound like a family talking so i wanna join.
thanks in advance