I looked at Zaxwerk's FAQ...found this and tried to follow it...
Problems with opening Illustrator files. The "No Usable Vector Paths" error message
A1 - The Illustrator file format has changed and you need the latest version of the software to be able to read the new format. Any version after the following versions: After Effects plug-in version 3.0.8. ProAnimator version 3.0.1.
A2 - If you are trying to make 3D objects out of an Illustrator file containing text, remember to Create Outlines on the text before saving the file.
A3 - If you are using Illustrator CS, turn off compression when saving your file
IN AI I created a file with a word in it...turned off compression...I created outlines via the SAVE AS ... Illustrator Options...unclicked use compression...saved and then tried to read into ProAnim...getting No Usable Vector Paths...
The remembered once upon a time someone saying I had to save the file as an AI version 8 file...so tried that with the same failure.