Ok, had time to summarize briefly so will do that and then u guys can ask questions. Basically it's just talking about the competitions in there so here goes:
'World championship' - basically sounds like world cup- choose 1 of 20 teams, pick your squad and then go for it- pool stage then knockout.
'Tri nations' - pretty obvious, home and away matches and mentions the Bledisloe cup as well but assuming that's just a name check.
'6 Nations' - Again, pretty obvious - go for the grand slam!
'Top Ten' - another little tournament with 6 Nations, Tri Nations and Argentina - could be good fun
'Super 12' - prob don't need to explain that, Mentions all the teams and says simple championship followed by play-off
'European Cup' - Heineken Cup basically- 24 teams from Eng, Ire, Scot, Wal, Fra, Ita in 6 groups then knockout
'World League' - Basically like master league from Pro Evo - start in crap league with club of your choice from all those featured and with crap players (assume random ones rather than the real squad with reduced stats) and then accumulate points to buy new players. [edit] there's also a league cup to obtain more points.
'Lions Tour' - Pick a squad, choose destination (Aus, NZ or SA) and choose your itinerary - with or without games against the nation's clubs - culminating in 3 tests against host nation.
Sorry it was a bit brief but think I got most of info in. Sorry there's not a lot new but only going on the info there!