What version of Pro/E or Creo Elements are you working in?
If you perform an import in Creo Elements Pro (Wildfire 5), you can select the option shown below to Import Blocks as Symbols. This will help.
If you're in a different version of Creo or Wildfire, let me know and I'll give you specific instructions. For Creo Elements Pro (WF5), import the file as a DXF. Switch to the Sketch tab to interact with the geometry lines. Switch to the Table or Annotate tabs to interact with the title block or dimensions.
To create a symbol, use the following slides. Click each slide for a larger view.
Ahh! Sorry... also meant to mention that in older versions of Pro/E, sometimes those DXF files can come in as one large group. You'll need to go to Edit>Group and select EXPLODE to turn the imported geometry into selectable geometry. This is only in the older Wildfire software (2, 3, and maybe 4).