If you are flying in Europe with a JAA license, then your log book should be JAA compliant and to that end should not have an SIC column as this is an FAA term.
Under JAA regulation while acting as PF you may log those hours as PIC/US w
PIC/US stands for Pilot in Command Under Supervision.
While acting as PNF this time is logged in the P2 column
Under JAA regs there is only one type rating which is no different which ever seat you occupy.
Under FAA regulations they have the SIC qualification for those pilots that do not pass a full P1 type rating, we do not have this situation under JAA/EU regulations.
So many people have explained this in previous posts I hope this is now clear and that PIC is different to PIC/US in your log book, 2 different columns.
From a hotel room some where.
Mav