Default HTC Velocity restore

Hey guys,

Playing around with this stuff today for the first time.

I unlocked the bootloader, got a custom ROM on there and everything, but now i can't seem to install any other ROMs without going to S-OFF which i don't feel confident in doing yet.

So i want to restore my phone back to the stock telstra ROM, but i'm having trouble doing it.

I relocked the bootloader and ran the RUU (RUU_HOLIDAY_ICS_35_S_Telstra_WWE_3.25.841.4_Radio _3.02.4740.09_34.20.701040.19_release_246698_signe d)

But the RUU only allows me to update and if i choose that it just fails completely.

I'm worried i've gotten my phone stuck on this custom rom i don't want.

what do i do?