Three months after England began their cricket tour of Australia, the visitors finally have their first win over the home side.Opener Ed Joyce smashed 107 for his maiden one-day international century and England kept their hopes of making the finals alive with a 92-run victory over Australia at the Sydney Cricket Ground on Friday.Set 293 to win, Australia were all out for 200 in 38.5 overs, despite a fighting 51 from Matthew Hayden, while Andrew Symonds retired hurt on 39. The result leaves England equal with New Zealand on nine points while Australia are on 27 and guaranteed a spot in the best-of-three final series.Australia will hope to regain captain Ricky Ponting from a hip injury for Sunday’s match against New Zealand in Melbourne. Symonds suffered a biceps injury and is also in doubt for the match.England scored their highest total of the series, 292-7, led by man-of-the-match Joyce after Andrew Flintoff won the toss and elected to bat first.Glenn McGrath and Shaun Tait were Australia’s only multiple wicket-takers, two each, with Tait conceding nine of Australia’s 19 wides.Australia lost stand-in skipper Adam Gilchrist first ball to paceman Liam Plunkett and Brad Hodge was dismissed the next over off Mahmood.Michael Clarke became Plunkett’s second victim before Symonds and Hayden added 71 off 50 balls for the fourth wicket. But within a space of five overs, Australia lost Hayden, closing specialist Mike Hussey and Symonds.Having lost five of their opening six matches, England started strongly as Joyce, who came into the England squad for the injured Kevin Pietersen, hit 10 fours and faced 142 balls before he was finally out with the score at 256-5 in the 47th over.