The Wanderers boss is hoping the win will give his players the belief they need to push on up the table...
Trotters manager Gary Megson afterwards described the win as the club's most important so far this campaign and suggested it might finally give his players the confidence they need to fulfil their potential.
"We have won what I felt was a vital game for us, our biggest of the season," Megson told the club's official website.
"We got off to a great start but we need to show more confidence in ourselves and a bit more belief. We have got good players."
The 49-year-old lauded Matthew Taylor's free-kick and the way Kevin Davies finished for the second goal, but was frustrated that they allowed the Hammers to get back into the game.
"We seem incapable of going on to make it three or four goals after going 2-0 up. It happened against Blackburn and Spurs, and again today.
"We showed apprehension but it would be wrong to criticise the players. They were both fantastic goals.
"You will not see a better free-kick taken throughout the world. I really mean that.
"The second goal was really well-worked. It is Kevin's best return in the Premier League and there is still a third of the season to run."
Ricky Brooks, Goal.com