Does Clear Storage re-lock your phone?

[joeshmo5]

Several months back I paid for a unlock, ROM'd my phone with Energy and was quite happy. Sometime in the past couple months I reverted to the stock rom. Yesterday I wanted to try another ROM and figured I would do the Clear Storage to get it back to factory settings before loading another ROM. Now none of the ROMs I try will load except the Sprint Stock Rom HTC Touch PRO2 MR1.exe. I have tried MightyROM, Neodium and Energy. Every time, my phone goes into bootloader but then the progress bar never goes past 0% and it eventually fails. Has anyone come across this before? Did the "clear storage" re-lock my sim? Is there a way to verify that my SIM is still unlocked?
Here is some info in case it helps:
OS version 5.2.21889
ROM version 2.04.651.4
Radio version 2.32.00WF

Thanks!