Have you tried their website? http://cover.mojo4music.com/Default.aspx?year=2008
This is 'covers' section - you want no. 181, December 2008,Europe issue (USA issue has Metallica on cover instead).
I have just checked and you can no longer order backissues online, but you can via phone. Click on 'want to buy back issues?' tab in right hand top corner of web page.
Failing that, let me know, I'll see what I can do.
We in UK are not as slow as you might think!