Resident Evil 4 Pal PS2

What's the deal with this, regular release (ie not plat or CE). Were there 2 runs?

Why I ask is I see this version on Ebay UK...
http://cgi.ebay.co.uk/PS2-RESIDENT-EVIL-4-RARE-HARD-TO-FIND-GAME-MINT_W0QQitemZ290236003373QQihZ019QQcategoryZ27256QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
rated 15 and with gold star sticker...

but then there's this too...
http://www.amazon.co.uk/gp/product/customer-images/B0007A5FY4/ref=cm_ciu_pdp_images_0?ie=UTF8&index=0#gallery
rated 18, no sticker!

Whats the deal. Both UK pal, or is one Euro/Aussie Pal?

The 18 is Pegi..perhaps that's the first run? Then the 15, which looks like the official BBFC, is the second run once they had rated it?

I dont know if theres a difference between theese two versions, but the pegi-rating from the amazon-version is an european rating. maybe the BBFC gave it 15+-rating.