Right thought I didn't explain it very well... I'll have another go

Basically I'll make up a first round "draw" of all the entrants. If there's 8 people in the tournament then there'll be 4 matches. With me so far?
Then everybody gets to cast 2 votes for a person in each match. Yes it's kind of a popularity contest, but it's just a bit of fun

Each vote counts for 1 game, and when someone has 6 votes then they win the match. So lets say Mark plays John W and Mark gets 6 votes, and John W gets 4, then Mark wins the match 6-4. If we get to a "tie-break" situation then everyone can vote again.
The one on the BBC website was the first to 2 sets, but I can't be bothered with that

Hope that's a bit clearer?