I told the "old man" to jump on here to answer your questions, but he's a little slow
I think SEKS ended and Five Star started around '82 or '83. I'm sure dad will jump on here shortly and give you more details. There was even a band before SEKS, but again, I'll leave it to big Dave to fill you in.
On another note: I know there's only 1 or 2 CDs left at BitterSweet. Once those are sold, that will make 30 copies sold in total! I'll be putting some more together over the New Year's weekend and hope to replenish the stock by Tuesday.