semifamous

We're moving from one billing system to WHMCS. Lots of customers have already paid. I've imported all of the customers from WHM using the WHM import function, so everyone has a free account. How do I set an account to start billing at a recurring rate starting four months from now? Do I have to wait until the bill is due to create an invoice?

I'm am trying to find the Platypus import script that is referenced by employees of HighSpeedWeb.net at http://forum.whmcs.com/showthread.php?t=6814 and http://forum.whmcs.com/showthread.php?t=22135 , but have been unable to get a response from either of them. It looks like it may have been shared with other users of this forum in the past, and I'm hoping that someone who is still around might have it and be able to send it to me. Send a PM or post a download link?