If you attend the initial course alone, you may get an intern or you may get paired with another "single" in the initial course with you. There isn't a guarantee you'll get an intern. Requesting to be left alone as a single and having the intern may not work, it depends upon how many people are in the class.

As to getting an SIC type, if you take the initial course as a PIC or an SIC it's still an initial - same number of hours for ground school and same number of hours in the sim. The difference is that in the PIC initial you have to be proficient in all the items in the training course and for an SIC initial you have to BE EXPOSED TO all the items but you don't have to be PROFICIENT in all of them - usually only about 10-15 items are required to be graded as proficient.

Disclaimer - it all depends upon the "Book 2" for the particular program. My advice would be to call the FlightSafety center in question and ask to speak with the program manager and ask these questions of him/her.