I WAS able to import a DWG file into my Student Version of Wildfire 2.0. I didn't have any files in either the IGES or DXF format to try. I then got side-tracked by my wife and forgot to try and export a createdfile. I'll work on this and get back to you.
Note that the DWG file I imported was an AutoCad file (version 2000 I think) that showed a 3D drawing of a cabinet section. Pro/E WF 2.0 treated each of the individual components of this cabinet section as a separatepart. The parts would need some additional work to add reference planes and dimensions, but other than that looked to be in perfect perspective.