With a gold card just use the 2.29.405.5 RUU to debrand.
i have downloaded the file to the pc, do i have to put it onto the sd card to use it if not what aprt of the file do i use ? do i need the radio download also?
does any of this need to concern me? i dont want to muck up
Below taken from teppics page on XDA.
2.29.405.2/5 INIT.D ROM v3.0 | v3.1
This is the latest HTC unbranded release. The base ROM is as described above, including init.d support, with no other modifications. Choose this if you want to install the latest rooted stock ROM. The mods below are not all compatible with this newer ROM, so it is important to install only those that are marked as compatible. The 2.29.405.5 is a very minor update from 2.29.405.2; you can install this directly, you do not need to install 2.29.405.2 first.
If you are upgrading from an earlier pre-rooted ROM you may be able to do this without wiping your data, though a wipe is recommended as usual if you experience any problems. To upgrade without wiping you must re-install your previous mods immediately following the ROM's installation. For example, if you have updated your system apps, by installing the new ROM these will be replaced with older versions, and so you must first run the update apps mod again before booting the phone. If you do not, you will certainly get problems. However, if you perform a full wipe, you do not need to worry about any of these things.
The radio supplied by HTC with this ROM is 32.49.00.32U_5.11.05.27 and so is the recommended one for you to flash.
Download 2.29.405.2 ROM
Download 2.29.405.5 ROM (the name on the download is mislabelled.)
Download radio