The Reds went down to a humiliating 5-1 loss on the south coast in August, but they gained revenge on home soil with the three points that move them out of the relegation zone.
Jason Scotland and Chris Dagnall scored either side of Leonardo Ulloa's leveller, though the Brighton's striker night ended in misery when he saw Luke Steele save a late penalty.
And Flitcroft was delighted to right the wrongs of the reverse encounter and breathe fresh life into his side's fight against the drop.
"I am very proud, we have set a team up to battle and they have done that in the first half," he said.
"I have got massive respect for Brighton in terms of the football they play. I am a massive Brighton fan in terms of that.
"We got schooled down there earlier in the season and that was one of the worst trips I have had.
"But I am delighted because the game plan we set out has worked.
"We didn't let them play with any freedom or fluidity and I don't think any of their players would have enjoyed playing here."
- Sports & Recreation
- Chris Dagnall
- Leonardo Ulloa