Seems a simple enough process to register only took me about 5 minutes then it was all done and sorted.

No it's not at all,
It takes couple of minutes to register and you can use your card at hundreds of online and highstreet outlets to gain points which give you money off club merchandise/season passes etc.

Forgive my ignorance but does the team card hologram in the corner mean that you are a club member?

No, top left corner its says Club Rovers "your team, your dream" with the rovers badge - i assume that proves your a member and none members dont have this on the card?

If someone isn't a Club Rovers member but have bought a season pass, what do they receive? Just a card with a barcode?

Id say teamcard hologram on the front like members have to go with the picture of the east stand, but without the "club rovers bit? would make sense surely; as its the barcode of the back which will inform the club when they swipe it wether your a member or not!

well i have 3 club members and 2 non-club members and the cards are the same.

Im not a Club Rovers member but do have a pass.

I recieved a card saying 2010 member on the front witha picture of the East Stand.

IM AT A LOSS THEN! MAYBE ITS ALL IN THE BARCOD EWHEN THERE SWIPED AND NOTHINGS DIFFERENT AT ALL ON THE CARDS!