Janome MyLock 204D Serger NEW MyLock 204D Serger "forming loops" Questions

I'm struggling with a knitting pattern how do I tw2 slip next stitch knit 1 pass slip stitch over and then knit into back of knitted stitch I just can't seem to get it right Skip the first stitch, ...

My Janome MyLock 434D overlocker is giving me problems ... never has before..... My Janome overlock is a MYLOCK 434D You do not list this above. It seems that something to do with the No. 1 bottom ...