If I've designated you as a guest author on this blog, you post messages by going here:
http://www.typepad.com/site/blogs/6a0105360facc4970b0105360facca970b/post/compose
In the big white box, you type your message. In the narrower white box above the big white box, you type your title. Then you hit the Save button under the big white box. That's it!
You don't have to be a guest author to respond to a posted message. Just click on the Comments link below the message and follow your nose.
If you're a WCC site coordinator and want to be able to post messages, let me know and I'll designate you as a guest author.
Bob Menzimer