Can I import data from my GIS department directly into Mappoint of any version, including 2008?

I am trying to find a solution as good as Streets And Trips for displaying maps and route info for my deputies in their cars. We currently have a slow website that has 0day GIS data, but has no real graphics or routing capability.

I'd like to use Streets and Trips 2007 or 2008 to make this happen. But I'd like to update the local files monthly. For some reason my GIS department will not update Microsofts database regularly, and we have a ton of new streets and access roads. I'm sure my GIS guys will give me the data in any format I need.