For political boundaries, roads, streams, PLSS township sections and other vector line layers, an easy approach is to download shapefile data in Geographic (lat/lon) format. The Shapefile Projection Utility in fGIS can then convert the shapefiles from the Geographic to UTM NAD83 format to match TerraServer images. If you need free shapefile layers, check ESRI® or MapShots® for starters. Another source, webGIS, has hard-to-find Public Land Survey System DLG shapefile data derived from USGS quadrangle maps. (Wisconsin UTM zones are here. Check here if you need the UTM zone number for a location elsewhere in North America. See the USGS site to learn more about the UTM projection.) For worldwide shapefile data, see ESRI® or Global GIS at the American Geologic Institute