import customers from outside source

I have been looking for several days now for the equivalent of "ezpop" for the customer files. Does anyone know if such an animal exits?

what are you importing from??

From the house pos system. I have full control of the program by compiling from the source code. The system is not native sql, but can talk to a sql.db if necessary. So I could either call the zc.db.tables directly or use "export to cvs."

I am hoping someone has done this before and I could build from their prior efforts.

I haven't done this before at all but I know there is a Quickbooks customer import module. May be useful to see how that one works.. or import what you need straight in to the zen db.
Hope maybe that points you in the right direction anyway.

I will look up the qbooks code. Using sql.db calls to the three individual tables is not a problem, however the logic to "sync" those tables together to satisfy zc is the question.