Ok, I see now that there can be some variation to the block markup generated by Artisteer. The 2 templates I have included with mojoportal have the same block markup but yours is different. I will have to see about adding additional settings and support for this variation in the next release of mojoPortal.
I wish there was a reference to the possible markup configurations that Artisteer can generate as I wonder if there are other variations that can occur.
Any steps you can tell me that might have affected this would help, or if you can make a decent looking template with the same problem that you would be willing to contribute to the project, then I will implement a skin based on the design and use it to make sure we support this variation in the next release.
Your design looks great. I find that I have very little talent for design myself even with Artisteer.