TOMB RAIDER UNDEWORLD ? HELPPPP!!!!!!!!?

im in some serious need of walkthrough hel right noe. ive tried online guides but they dont just semm to help. my problem is that im in the xibalba level and i have already ratated one of the mayan calenders. ive rode on the bike took a right keeped going until i reached like this bulding thing. i killed like about 4 or 3 poachers(people) and some pumas jaguars black panthers(im not sure what animal it was. then i picked up like this stick thing and inserted in this gold shiny hole. i had to move like this square bold thing to to it. then as i held on to the pole a door opened on the left and in order for me to go through the door i had to let go of the pole and run to it and go through. once i arrived inside i saw another calender. now this is were im stuck. i dont now what to do. i tied to move this caleder thing like the other one but it appears to be missing the other movee thing that the first calender had. what do i do? HELP!!!!!