Downloading the private messages.

[rew]

Does anybody know a way to download the private messages?

I've been having a conversation and we're going back and forth with small messages at a high rate. Nearing my 50 messages limit quite quickly. I want to be able to look back at what I've promised if someone says I promised them something....

[edit] Sorry. It seems there is a "downlload XML" option that is suitable for archiving purposes.