I've just finished attempting to installs wp-ecommerce on a new 2.7 installation and have run into a few problems. Firstly, it doesn't appear in the inactive list on the plugins page, but it does appear in the sidebar. Secondly, the links in the side bar lead to 404 errors.
I've tried downloading the plugin and uploading it to my site via ftp, uploading the zip file within wordpress and installing it with the search/install plugin page also but it all ends up the same. Is anyone else having this problem? Have you been able to fix it?