Your plugin is really great, and it's finally working fine in Outlook 2007
But theres especially one thing that i would like to see improved:
Make it possible to use the Outlook default font/style in templates and signatures.
Problem: When i replied a message with a template now, i got three different styles in the email: Greeting was one font and color (outlook default), but the template was another (the one that was selected when creating it). The signature was a third font/style... Obviously, this doesn't look very nice. And also, it's probably easy for the reciever to see that i didn't write a single word myself

(it's better to let them believe i personally wrote it)
Solution: Add an option to the HTML screens of templates and signatures: "Use Outlook default style" or "Don't change font style"
I also have another suggestion: Make it possible to have more than one "Template menu", with different categories, when writing messages.
Example: Let's say i have three categories. It would be even faster if i had a menu for each of them directly available, instead of having to select the right category first.
Solution: Implement different types of menus: One general like the current, and optional "Quick menus" where you specify category, and the menu is more minimalistic. I only need a combobox with the templates (from this menus category) and a little "insert" button at the side. I can see that the B&W menu in Outlook 2007 menu ribbon, would fit three dropdowns stacked.
A third suggestion: Make it possible to reorder the templates. They seem to be ordered by time created. In the template tab in Options, there should be buttons for "Move up" and "Move down".