joertexas, is possible that you haven't a correct version of Blender. If you use Windows, download from Graphicall a new version.Win 64Win 32
These versions alredy have my script
If you use a different S.O. search in graphicall a recent version and download again my script.
 Some trick for speed up in 3Dview
Before you start the import, change the View port shading to Bounding box. After the import set in User preference system VBOs and now change View port sahding to Object mode. If you have a Series 400 GeForce video card, before to change VBOs, uncheck Double side in Object data. Last thing: if you change in Sculpt mode, you can gain some FPS.
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