Gentlemen,
Being an X5 owner for all of 5 days now I'm on a fairly steep learning curve, as you can imagine, so am most appreciative of your advice and assistance.
I'm now getting my head around the importance of the build month/year issue, and it appears that Wayne is correct - the blind should fit as my car was built in September 2003, which I believe makes it a post face-lift model - correct?
Doing a search on the very helpful parts site (thankyou, QS7) shows the blind I need is Item 15, the roller blind.
All this is most fortuitous because I purchased one on ebay last night !!
When I read QS7's post this morning I thought I may have cocked up, but now that I know the car's build date I think all is well.
Once again, thankyou both for your input.
I think I might have to change my Login name to "X5Virgin"