Cargo cover 'vent louvers'??

[dib]

And now for one of the many newbie questions I have – I’ve searched for the answers and possibly missed some in the forums, so my apologies if any of these are repetitive - please let me know if any of you have any responses...
So, here’s the first of many to come
I purchased my X5 second-hand and it did not come with the rear cargo cover (previous owner removed it) and I would like to add one. I was thinking about updating to the ‘04+ version but the ‘vent louvres’ are not clear to me. My local BMW shop quoted me a lot more than the posting/article put up by iflyx5 (like double!!), and I would like to see if I can find them on a local parts yard. The only problem is that I have no clue what they are and where to locate them – do any of you have images? Or better yet, any of you have the rear cargo cover that you would like to part with (I know a lot of you remove them) or even some vent louvers to sell (I can get the cover for a reasonable price on ebay). If so, I am based in Vancouver, Canada – please pm me with details...
But for now, some pics of the vent louvers would be great... please.