I've been searching all over to try and figure this out, but I don't know if it's possible.

What I'm trying to do is have it so that I can link my dashboards in the dashboard section. But my dashboards never show up.

I want to link:
c:\avalaunch.xbe
c:\evox\evoxdash.xbe
e:\apps\xbmc\default.xbe

Is this possible?

You cant do that man. They all have to be in a unified Dashboard folder for the dash to pick them up. You can have a link in your main menu to like avalaunch if you have a fifth tab tho.