I've known this piece for a while but I never attempted to analyze it until now. I'm just having trouble figuring out this part. It's from about 0:52 to 1:15 of this video: http://www.youtube.com/watch?v=1aV2pCmAS8U&feature=related

Bm F# B7 Em A7 D C E#dim7 F# Bm

i V V/iv iv V/III III bII viidim7/V V i

The bold part is what I'm unsure about. It probably changed key somewhere but I couldn't make any sense of it.

If anybody can help me figure this out, that would be great