Hi GinBee
I started my MA in 2008 and finished my BA in 1998. I obtained a reference directly from the department - found the appropriate prof's details on the website and went from there. Best thing? He remembered me and now I'm doing a PhD back at that uni and was chatting with him just yesterday!
However, even if they don't remember you (I think we only bonded over both being from NE England!) they'll have the details they need on file and will get you something appropriate for an MA reference.
Hope that works OK