If you wish for an ERJ panel w/ autopilot, try the Hector Molina ERJ panel. This panel is detailed, but not as detailed or difficult as the panel that came w/ the ProjectERJ model.
I'd recommend downloading the ERJ from Dreamwings Design (http://www.dreamwingsdesign.com
), provided you're using FS2004. This model has a wingview, but not a virtual cockpit. The group also has a freeware ERJ-170 and Dash-8-400 available.