Actually that longpress to bring up the voice feature does not work the way the original button did. The one you use searches online. The voice button on the side of the phone is supposed to use the Google Voice features (dialing numbers and opening menus and applications). Using the one that's on the search button, if I said "open sms" then it will search in the browser for those words instead of opening the sms application.
I too had issues with ADW and the dockbar. Normally I use LauncherPro Plus, I was searching the options in ADW to check on that transparent statusbar option Sadie was talking about (I changed nothing in the options), and when I came back out of the options the entire dockbar was just gone. I went back in to the settings and reset ADW back to default (was already on default as I normally never touch ADW) and it brought the dockbar back. Then it disappeared again right when I was looking at it. I didn't even touch my screen or any of the buttons lol. Definite bug me thinks.