wbloggar
This is annoying. WBloggar is a popular desktop blog publishing tool (free). BlogJet is another popular one (not free).
However, I can't connect to dotnetjunies with any one of these. WBloggar times out when trying to connect. There's nowhere to increase the timeout setting. BlogJet crashes with an EAccessViolation at address 0053CFC2. That helps a lot.
So much for fancy blogging software.
Update: After browsing the BlogJet forums, I came accross this post. Apparently this error occurs when trying to connect to .Text using a MS ISA 2000 proxy. I've got version 1.5.0.37 of BlogJet. Maybe this problem will be fixed in a later version. Maybe not?