Automessage plugin - not pulling through %siteurl% or %sitename%

Got this running on my BuddyPress site to welcome new members. Looks really good.

One issue though - I use the %siteurl% tag in my email content, but the only bit that gets included in the email is http:// - the rest of the URL isn't there.

Possibly related is that in the footer of the email with the unsubscribe message, it reads "To stop receiving messages from click on the following link" - ie no site name in the message!

Any ideas?