MT Signin

I’ve just finished upgrading this blog to version [4.23 of Movable Type](http://www.movabletype.com/blog/2008/12/mt-423-released.html), a security update that was release last night.
All seems well but, as ever, if you see any problems, please [drop me an e-mail](mailto:adam@onemanandhisblog.com).
Inevitably, of course, Six Apart releases a security update less than 24 hours after we finish upgrading all our versions of MT at work…