Haven't got any timigs, but i believe xx00 off Pancras and xx38(ish?) off Picc. Think theymay have ran for a year from May2003???
Stopping pattern was Pancras, Luton, Wellingboro,Kettering,M.Harborough, Leicester,then RA Stockport (via Toton,Hope Valley) and Man Picc.
I know some of the yellow power cars worked alongside the ex VT/MM booked ones. Also i had a GW specimin on a Stockport ned leap...I didn't give trams much thought at the time, but wouldn't have minded doing RA Stockport-Leicester. Now MM HSTs are one of my main bashes...
Hope that helps