ok thanks
but once i have it corect i will be able to get in at this early stage ie 2 months prior to departure
Yes you will be able too, I booked my honeymoon in January and have been able to get access since the day I booked and I was able ot add my FC account detailes to the booking as well.
Make sure the first name and surname matches the same as whoever was the lead person on the booking in Thomas Cook. So if it was your wife's name in Thomas Cook then use her name with the PNR on Virgin's Website.
My PRN takes the following format:
XX9XXX
So it can be any combination of 6 Numbers or letters. Hope you get sorted