help with unlocking phone!

[67chevelle]

when i run the HSPL_037 program thing it goes to where it updates the rom image on my phone but about 15seconds in i get a error 202 error. it says that the phone isnt connected but active sync is running and says its connected. i read the thread on unlocking and downloaded the manual SSPL unlocked but it says sspl manual.exe has encountered a problem and needs to close, we are sorry for the inconvenience and the only option is to close. can someone please help? should i hard reset? i read the first 6 pages of the unlocked thread and nothing helped. thisis my first time flashing a custom rom so please forgive my question. im going with mighty mikes rom btw. thank you!