Glenn is hoping his team will right the wrongs of the 5-1 defeat on Sunday, and overturn a poor record against Chelsea in the FA Cup.
The Blues have won the last three times the sides have met in the competition in 1931, 1932 and 1965 - the last time when the Hammers were holders and a Bobby Tambling goal won the game.
"I'm certainly looking forward to it and said to the players after the team meeting 'to be honest, lads, I can't wait to get there myself'," says Glenn.
"Normally you have to wait months but we are back just six days after a disaster, and I'm certainly up for it - we will certainly know in those first 20 minutes if the players are.
"The goals we conceded last week were rotten goals; you never concede a good goal but occasionally you have to put your hands up in the air and say you couldn't do anything about it.
"But we were losing possession and didn't make good decisions on our defending; the first goal was horrible.
"It is amazing that we both go into the game on the back of losing 5-1.
"We need to put them on the back foot as much as we can in the opening 15 minutes.
"We need lots of belief and courage - and we will find out a few things about our players on Saturday."
Glenn admits he has looked at various tactical options and says:
"I've looked at lots of things this week and put on practices.
"Trevor Sinclair is a major doubt for the game and if he wasn't to make it, it puts us in a difficult position because we have only four midfield players with John Moncur suspended.
"Labant had 70 minutes in the reserves and I was pleased with what he showed us; I wouldn't want to throw him in until he is fully fit, so he can do himself justice.
"It is lovely to have Steve Lomas back; I really hope he is lucky because he has had incredible bad luck.
"He was out for virtually a year with a knee injury, and then in his first start someone stands on his toe and snaps it."
Whether Steve or Vladimir get a run out following just one reserve outing remains to be seen, but Glenn knows that if the tactics might change, the personnel are unlikely to very much.
"The big five clubs, if you want to call them that, have five or six injured and pull up five or six of similar quality," says Glenn.
He knows that even if Chelsea have one or two casualties from their midweek exploits against Spurs, such as Zenden, they have still have plenty of quality.
"It is a luxury they can afford," he admits, "and we are quite envious - but we have to get on with it; we have got to be able to stand up and be counted.
"We want to come off that field at the end of the game, look ourselves in the mirror, and say 'we've done all we can'."