Multi value attributes not appearing in the Web UI

Hello,

I've created a multi value attribute in the SAP GUI in CRM 2007 which appears correctly against the product. When I transfer this multi value attribute to the web UI, it doesn't appear at all unless you add values against it in the SAP GUI, in which case it appears, but the set type attributes are not editable.

Any suggestions as to why the attribute is not appearing and what can be done to resolve this?

Thanks,

Alison