Hammer
Good question, of which there is a few different but correct answers.
First by regulation FAR 61.55, the sic does not need to be typed. Most pilots get their first operating experience sitting in the right seat without the type. I started out this way but was fortuante enough to attend Flight Safety SIC course for the jet I was copilot on. I use copilots without the type and even allow them to fly left seat, nothing in the regs about which seat you occupy. I would venture to guess that Doug isn't typed yet as most airline FO's are not, unless they are international FO's. The regs are pretty simple and liberal here, but where it gets sticky is when you factor in the insurance companies.
We recently changed insurance companies and the new company wanted us to type our FO's at the tune of about 27K each. We even argued that taking them to SIC training was cost prohibitive and finally got them to "bless" our FO's individually. It sucks because most of my FO's have more total time than me, and most of them have big airplane time as they are furloughed airline types.
You can still find operators who will give you a break and hire you to fly right seat, if they want you bad enough they will go to bat with the insurance company. This would apply to any operator of an aiplane requireing a type, not just jets.
Good luck
Jim