I currently have a blog (wordpress) setup on my website at www.blog.mysite.com, I would like to be able to use the same blog but move it to www.mysite.com/blog.
Would this be possible with the CS-Cart software? I know how to move my wordpress blog, but I'm not sure how to get the .com/blog away from CS-Cart.
It depends on how your host controls subdomains, usually a subdomains files would be in a subfolder like /public_html/blog/ or /httpdocs/blog/. In this case you would only need to update the settings within WP to change the URL from www.blog.mysite.com to www.mysite.com/blog
Ensure you do not have 'blog' listed in CS-Cart SEO Rules.
I have one site running a WP install as a subfolder and I don't think I had to do anything special to get this to work.
Update: Nope, no changes in the default CS-Cart nor WordPress .htaccess files.
I've just installed WP in main directorty with CS cart in a sub directory.
Sample here: http://www.earthslivingclay.com with CS Cart in http://www.earthslivingclay.com/shop