I had the same problem, this is often caused when wordpress is installed by fantastico through cpanel.
All I did was, ftp’d my site, went into the themes folder and into the related theme, then CMOD all files to 755 (some servers you may need to 777 them).
Log back into your dashboard and you should be able to edit themes.
The Postgator Search Engine Submitter is a cool little plugin which will submit your posts automatically when you publish them. You can find this at postgator.com.
http://www.postgator.com
There is a plugin available which will automatically submit your blog posts to 160 search engines as you publish them. this plugin can be found at postgator.com http://www.postgator.com
