Where have you got that £10mil from? Soccerbase has it down as around £17mil between October 2006-May 2008 and about £17mil sold as well.
I must have missed one. It's £11.7 million he spent, and £18.5 million he brought in, not counting the ones with unknown fees.
Presumably you're counting the players he signed after the end of the season, when they'd already been promoted. I was just looking at how much he spent to get them promoted, not what he spent afterwards.
Sold:
Diomansy Kamara Fulham 6000000
Jason Koumas Wigan 5300000
Paul McShane Sunderland 2500000
Nathan Ellington Watford 3250000
Nigel Quashie West Ham 1500000
Total £18550000
Bought:
Filipe Teixeira Acad. Coimbra 600000
Leon Barnett Luton 2500000
James Morrison Middlesbro 1500000
Carl Hoefkens Stoke 750000
Chris Brunt Sheff Wed 3000000
Bartosz Slusarski Groclin Grodzisk 680000
Sherjil MacDonald Anderlecht 200000
Ishmael Miller Man City 900000
David Worrall Bury 50000
Tininho Beira Mar 230000
Shelton Martis Hibernian 50000
Craig Beattie Celtic 1250000
Total: £11710000