I keep getting Error 130: Model ID Error when running the RUU file. I've tried it on Win7 & XP, with 3 different MicroSD cards (Lexar, Sandisk, and Kingston), all with the same result, and have re-run the step for making the goldcard image as well. I've also tried 4 different versions numbers of the RUU file to no avail. Frustrating.
Telus Hero, purchased back in November.
And ID error means the goldcard hasn't worked (so no need to keep switching computers).
You should have a look at this guide: http://androidforums.com/all-things-root-hero/96848-telus-htc-hero-root-guide.html It's very comprehensive.
Yes, it's a guide for rooting the phone, but it's the same process. (Except you install the latest generic ROM, not the one he mentions
)

I might write one