I dunno where I found the name Abigail but probably the reason I said it "may or may not be" is because I just found a single gallery somewhere saying it was her name. So if you found one where it says Tia, either name could be true - or neither. It's hard to know when someone only does one shoot or at least very limited material because there name could be made up or simply not known... not to mention the fact that even if they were given a name for it then it effectively doesn't matter what it was if they never went on to do anything more.
Depends who CS Productions are. If you can find any info on them then it might lead you somewhere.