If they were on version 6.7.2 mutliple tagging with TagUI will work just fine. I've been getting our dev environment up and running on 6.7.2 patch 2 this week and have been working in TagUI all day today since I knew it now supports multi-tagging (i have it working in my environment) and we can finally switch over to it with the upgrade. it's also mentioned in the release notes of 6.7.2 that TagUI supports multi-tagging now. From page 10 of TeamSite 6.7.2 release notes:"TagUITagUI provides tagging for single files and multiple files; it is enabled by default. Refer to the TeamSite Supplement for a description of the functionality and for information on updating your tagging structure and backward compatibility."