I heard the incident through the Soccer Special on Sky Sports and Matt Le Tissier painted quite a good picture.
However, like Alan Shearer has just said, it's difficult because of the active/passive part of the rule. I can really understand why Fergie was angry, but, I can understand why the lino put the flag up. Cissé was moving into an offside position, but Jonny Evans was also pushing him toward the goal.
I do think that the Referee should have moved Fergie to his seat though.