[Q] Frustrated NOOB needs a little help installing rom topic

After several days struggle, I'm burned out. Some of the threads here have 100+ pages, and searches yield too much outdated, irrelevant info. So, I'm asking for some direction (as simple as possible, please).

I'm trying to set up my unlocked HD2 (originally T-Mo, but unlocked and using AT&T) for dual-boot, WM6.5 and Android. As you know, the choices for android rom are mind-boggling. I don't need anything fancy, just something up-to-date and stable. I would like, however, something LOUD.

Here's what I've tried so far:

Using despy1989's March 2010 guide (four years old already!), I have my HD2 booting up asking to choose Android or WM. If I choose Android, it does nothing, and defaults to WM.

I have SUNDAWG-CM7-NATIVESD rom loaded (or I think I do) in the android directory of the SD card. I'm not sure this one will meet my LOUD requirement, but since it won't load, I can't tell.

If I tap the new Android icon, it does nothing. If I tap the Android SoftReset icon, it resets but does not load Android, goes to WinMo.

If I go to File Explorer, and run haret, I get the message "failed to load file \storagecard\android\sdcard\nativesd\zimage"

What do I do next?

ANY help is much appreciated.