How odd, the site says its Mobile 2003 compatible.
For plain text files I have been using Pocket Word. I recently installed
Repligo, a viewer, but the conversion process from PDF to Repligo just wouldnt go. Then again it was 715 page document, and my PC craps out because of lack of memory. When I had Pocket PC 2002 the PDFs in Pocket Acrobat Reader were kind of sluggish, but after a failed Repligo conversion I loaded the 715 PDF to the Axim and the Adobe convertor worked great and the Axim handles the document better with this OS.