Basically am doing this:
1) Rooted Desire using CWM v4.0.1.4
2) Download the ROM
3) Copy the downloaded zip file it to the root of your SD card.
4) Power device off and reboot it in recovery.
5) backup is not working so am starting to think my SD Card is the problem.
6) Wipe Data/factory reset, clear cache, wipe the battery stats & clear dalvik cache.
7) Choose the "Install zip from SD card’ option.
8) Reboot.