Due to an increased level of spam on this forum I've had to take the step to validate new joiners to this group. I'm sorry I've had to do this, but the level of spam (particularly overnight when I can not monitor) was getting too excessive.
New joiners: when you register, you will receive an email confirming registration, and then as soon as I can manually verify you you will receive a second message telling you how to log in.
Apologies for this - it's unavoidable until we develop more anti-spam measures, as part of the ever-running arms race against spammers.
David.