If you look at the screenshots of Mail on the UK Apple site it looks very different to the version on the US site.
UK: http://www.apple.com/uk/macosx/tiger/mail.html
US: http://www.apple.com/macosx/tiger/mail.html
Which is the most recent version?
UK: http://www.apple.com/uk/macosx/tiger/mail.html
US: http://www.apple.com/macosx/tiger/mail.html
Which is the most recent version?