Evening folks!

I've been struggling to get caller ID into my PCs - as we all know, modems and UK CLI don't work very well together.. I did a load of searching and I found this 8-year-old review by Dean Smith where he hacked a BT CD50 Caller ID unit. It refers to a circuit by Jon Payne, but the link has long since expired.

I picked up a CD50 from eBay for a couple of quid and it arrived today, but I really need to get the circuit diagram.. does anyone still have it, or should I have spent that few quid on a couple of pints instead?