I've just bought my first .org.uk domain name and wanted to ask if there's any 'special' requirements to get it indexed over .com and co.uk domain names?
No you shouldn't have any problems. I own several, as they are often available when other extensions have been registered, and you would SEO it exactly the same as you would for any other domain.
Like the people above, I have .org.uk's in top spots in the search engines