there is also a preety good document written by the makers of genrepox at eps-software try this location http://www.eps-software.com/isapi/eps.dll?KnowledgeBase~DisplayKBDocument~9

It requires a logon--I have a cookie so I was able to get immediate access Im not sure if you will. If not go to www.eps-software and search the knowledgebase for frx structure.

Good luck