The current version is designed for maximum compatibility. All it needs right now is a server with PHP and write permission, then on the other end, HTML support. I have used a bit of Javascript, but it only serves as a convenience (such as to remind you to enter a password) and all the pages will work without it.
I'm more of an analytical person than an artistic person, so my design is rather simple. I'm not experienced in CSS and XHTML, but it is a logical next step. I should learn to use some more advanced styles than my HTML and nested tables.

I hadn't heard of Wordpress and MovableType, and after some investigation, I'm still not sure how they would benifit my plugin.
Anyways, I've sent my plugin. I'd be happy to hear when/if you get it up and running, and to fix any problems you might encounter.