Sorry, been gone for a while, but I have info regarding the Tyson and JT boots (from SU and blackwhale at Sucks)
It's kind of complicated, so read slowly!
At the Tyson boot, Russell is the target, and Tyson tells him he's leaving. Russell shows the idol to Tyson to try and threaten him. Some people panic and switch their votes to Parvati. Russell gives the idol to Parvati, who played it at TC. Tyson gets 4 votes, Parvati 3, and Russell 2.
As for JT, in the challenge before the merge, the heroes tribe sees that Russ is the only guy left and assumes that Parvati's "black widow" alliance is running the game again. With the blessing of his tribe, JT gives an idol to Russell during the challenge, telling him to use it to get rid of Parvati, thinking that if it worked, Russ would jump over and vote with the heroes, giving them the advantage. When they merge, the heroes are surprised to see that Parvati and Russell are still there - he tells the heroes that he and Parvati both played an idol, and Courtney went home instead. The plan is still to get rid of Parvati. Knowing this, Russell gives Parvati the idol. Parvati then wins immunity, so Amanda lied and told Parvati that Sandra is the new target. JT, thinking that Russ would be voting with them, told him that the real target is Jerri. Parvati gives the idol Russell gave her to Sandra. Russell doesn't know it, but Parvati also has a second idol which she gives to Jerri. Both are played at tribal council, and JT ends up going home, probably because of Russell wanting to make him pay for being such an idiot.