As it turned out, we had to wait until the final seconds of the first period before Forest keeper Colin Doyle allowed Jermain Defoe's free-kick to slip through his fingers and over the line.
The visitors had still managed to create chances even though we'd had the of that first half and they levelled when Gareth Taylor took advantage of a mix-up between Paul Robinson and Ledley King 10 minutes into the second half.
Both sides created chances after that but the best fell to Forest's impressive 21-year-old Kris Commons minutes before time - Robinson at his best to save after Commons beat four players on a dribble into the box.
Head Coach Martin reflected: "I thought if we could score a second they would have to open up and it will be an easier game.
"We did everything right in the first half. We had five or six good chances, they had three. It is always difficult if you don't score a second.
"In the second half we had two volleys in the 18-yard box, a chance for Defoe and a chance with Mido so we could have scored a second one.
"But at the end they could have scored a second, so all credit to them. Maybe we are happy to go there and play another 90 minutes. But it will be harder there."
As for Forest's equaliser, Martin refused to point the finger at any individual. "There was confusion at the back because it was a floated ball, not really a pass. We tried to play offside and we shouldn't have. Robinson had to come and it was too far. It was miscommunication."
Tottenham head coach Martin Jol slammed his Barclays Premiership players for failing to break down a side struggling to retain its position in the Coca-Cola Championship.
Spurs were held to a 1-1 draw as Nottingham Forest forced their FA Cup fifth round tie into a replay - and left Jol seething.
Spurs had taken the lead on the stroke of half-time when Forest's on-loan 'keeper Colin Doyle dropped Jermain Defoe's free-kick into his own net.
Jol felt his side should have gone on to close out a comfortable victory over Forest - but the visitors' captain Gareth Taylor took advantage of a mix-up in the Tottenham defence and forced the tie into a replay.
In a frenzied finish, with chances at both ends, Jol considered Tottenham somewhat fortunate not to have been beaten.
The players left the field to a chorus of boos from the home crowd and after the game Jol echoed their frustrations.
"If you play a lower division side you need to open them up, you need a bit of brilliance," he said.
"It takes a lot of concentration and good service but the service was getting worse and worse. We lacked movement on the flanks.
"Thimothee Atouba, Reto Ziegler and Stephen Kelly were below par. When you play against lower division sides you have to open them up. There was a lot of room for Atouba and space for Stephen Kelly but a lack of brilliance on the flanks.
"You always need someone like (cup-tied) Andy Reid who can dribble and cross the ball. Atouba takes a lot of risks. One day you love him - this time was different. He is only 22 and one day he will learn.
"I am disappointed that we have to play an extra game. Tottenham went ahead on the stroke of half-time when Doyle dropped his clanger - but Jol feared history might have been repeating itself.
Against Manchester United, goalkeeper Roy Carroll dropped Pedro Mendes' speculative shot into his own net but scooped it out before the assistant referee could give what would have been the winning goal.
This time the luck was with Tottenham - until Taylor pounced for the equaliser. The Forest captain stole in between Robinson and Ledley King to head the ball past the 'keeper and then tap it into an empty net.
Forest manager Gary Megson was delighted with the character his side showed after falling behind, particularly the mettle displayed by Doyle, who was making his first- team debut after joining the club on loan from Birmingham.
"You do feel for him. I said to him during the week, keep goal before you do anything else," said Megson.
Unfortunately that was the softest shot he had all afternoon and he just took his eye off it. It was an awful error.
"But there is no getting away from it that after that he showed a strength of character you might not expect in a 19-year-old.
"He played ever so well. The most pleasing thing was that he came out and took a cross 17 metres out with five minutes to go. It would have been easy to expect him to not come for it.
"To make your debut under those conditions isn't ideal. But he is not coming into a team that is flying, he has come into a team that has let in 45 goals. Nobody had go at him or particularly mentioned it at half-time.
"He made a mistake but the way he got on with it was very impressive."
Megson was happy his side deserved the draw and felt they might have even snatched a win.
"In the quality of chances we had, we could have won," said Megson.
"That has been the story of my season at Forest over the last few weeks. We don't turn enough chances into goals, hence we are where we are."
Martin Jol gave credit to Forest but felt a second goal in the first half would have made all the difference.