autocad elec

I'm not familiar with the dedicated electrical product from AutoCAD
but this looks like a good place to start, there my be links of user specific forums.

http://robstein.blogs.com/rob_stein_knowledge_cente/autocad_electrical_user_group/index.html

I don't know how are you familiar with autoCAD, but first you have to know also that blocks can configure as well: you can change scale, do it modifications etc.. and this is the same in all autodesk products. WD_M & WD_PNLM blocks (if you have not done by your self) are blocks (symbols) made default by autodesk which represent selected symbol in electrical design. I have not installed autocad electrical, but I have autoCAD 2007 there you can find path: C:\Program Files\AutoCAD 2007\Sample\DesignCenter where are some main default symbols.

Write to me if this can't help