FCKeditor image upload problems

[mikei]

I am having an issue getting the FCKeditor to upload images via the CMS made simple admin. The image browser is browsing the appropriate location (as defined in the /config.php file) and *will* allow me to create new directories. What it won't do is upload images to the default directory that it is browsing as well as any new directories I create via that interface. The new directories that get created are created with the appropriate permissions. The existing uploads/images directory indicated in the config.php has the appropriate permissions as well. When I browse to a local image and hit the upload button, the fckeditor appears to be uploading the image but nothing gets written to the server.

Is there some sort of a php setting that might be affecting this? The ability to create dirs but not upload files.

Is there any sort of an error log where I might be able to glean some further information?

thanks