I've added last week's position to the chart. (-) means that it's a new entry or a re-entry. Hopefully everything is correct, but I did it by hand, so...
Multiformat
1. (-). Hellgate: London (PC)
2. (7) Singstar Svenska hits Schlager (PS2)
3. (1) Metroid Prime 3: Corruption (Wii)
4. (3) Football Manager 2008 (PC)
5. (2) The Legend of Zelda: Phantom Hourglass (DS)
6. (9) World of Warcraft (PC)
7. (6) Half-Life 2: The Orange Box (PC)
8. (10) World of Warcraft: The Burning Crusade (PC)
9. (12) Counter-Strike 1: Anthology (PC)
10. (5) Pro Evolution Soccer 2008 (PS2)
11. (14) The Sims 2: Jorden Runt (Bon Voyage)(PC)
12. (11) FIFA 08 (PS2)
13. (15) The Witcher (PC)
14. (17) Battlefield 2 (PC)
15. (-) Naruto: Rise of a Ninja (360)
16. (-) Guitar Hero II (PS2)
17. (18) Warcraft III: Frozen Throne (PC)
18. (-) Tabula Rasa (PC)
19. (-) Need for Speed Carbon (PS2)
20. (-) Warcraft III: Reign Of Chaos (PC)
PC
1. (-) Hellgate: London
2. (-) Football Manager 2008
3. (3) World of Warcraft
4. (2) Half-Life 2: The Orange Box
5. (4) World of Warcraft: The Burning Crusade
6. (5) Counter-Strike 1: Anthology
7. (6) The Sims 2: Jorden Runt
8. (7) The Witcher
9. (8) Battlefield 2
10. (9) Warcraft III: Frozen Throne
Playstation 2
1. (2) Singstar Svenska hits Schlager
2. (1) Pro Evolution Soccer 2008
3. (3) FIFA 08
4. (4) Guitar Hero II
5. (7) Need for Speed Carbon
6. (5) Singstar Svenska hits
7. (9) Singstar R&B
8. (-) Crash of the Titans
9. (6) Final Fantasy XII
10. (10) NHL 08
Playstation 3
1. (1) Pro Evolution Soccer 2008
2. (2) FIFA 08
3. (4) Skate
4. (3) NHL 08
5. (7) Colin McRae: Dirt
6. (-) Clive Barker's Jericho
7. (-) Juiced 2: Hot Import Nights
8. (5) Folklore
9. (6) Eye of Judgement
10. (-) The Darkness
Xbox 360
1. (-) Naruto: Rise of a Ninja
2. (1) Pro Evolution Soccer 2008
3. (3) Halo 3
4. (2) Half-Life 2: The Orange Box
5. (4) FIFA 08
6. (6) NHL 08
7. (10) Guitar Hero II
8. (8) Skate
9. (-) Timeshift
10. (-) The Simpsons
Wii
1. (1) Metroid Prime 3: Corruption
2. (2) Table Tennis
3. (3) The Legend of Zelda: Twilight Princess
4. (-) The Simpsons
5. (7) Super Paper Mario
6. (4) Rayman Raving Rabbids
7. (10) Carnival Games
8. (5) Mario Party 8
9. (8) FIFA 08
10. (6) Boogie
Nintendo DS
1. (1) The Legend of Zelda: Phantom Hourglass
2. (2) New Super Mario Bros.
3. (4) Pokémon Diamond
4. (3) Pokémon Pearl
5. (6) Bilar (Cars)
6. (8) The Incredibles: Rise of the Underminer
7. (9) The Sims 2 Pets
8. (-) The Simpsons
9. (10) Nintendogs: Dalmatian & Friends
10. (5) Mario Kart DS
PSP
1. (3) Need for Speed Underground Rivals
2. (4) Ratchet & Clank: Size Matters
3. (1) FIFA 08
4. (2) Final Fantasy Tactics: The War of the Lions
5. (5) Medal of Honor: Heroes
6. (7) Tekken Dark Resurrection
7. (8) Grand Theft Auto: Vice City Stories
8. (-) Loco Roco
9. (10) Star Wars Battlefront: Renegade Squadron
10. (9) Daxter