well, i fear you may have jumped ship to soon! The scene is now booming, relatively speaking, for this device. The support is here and the development is happening as we speak. We may not have an official 2.2 release, but we have pretty dman close. Not to mention the roms that have been made, mine included(Miunia).
Androidforums has died down a decent amount since i created my account for my droid x, but XDA is still going strong.
If you would like to see what has been done with this phone head over there. TX has done a good job bringing most of it over here, but there is much he has left out(expected as he is only one person)
As for the sounds, they are located in the /system/media/audio folder.
Hope this helps.
If you would like to pull them download a CWM flashable rom and unzip it. Navigate to the folder and pull them.