DSF

Hi, i just received my new mug press today from BMS its the DF1. Upon taking it out of the box the soft orange mug blanket bit is just sitting in the silver curved metal press bit and can move around if pushed...should this have come attached or how do I attach it in properly myself?
Sorry am totally new.
any help appreciated, thanks
LisaM

ah, i just you tubed it, it just pops in and holds in place under the metal rim