What are you expecting then to put under 'Album'? If you are looking for organization tips you can set your iTunes view options to show 'Groups'. Otherwise there is no easy way to do this.
The hard way, and I'm just thinking this never done, would be to go into your iTunes XML file and do a search and replace of album and groups. Though This would require some high attention to detail and is not guaranteed to work. Make a backup of the XML file if you do feel the need to try.