Installed the clic engineered hardwood floor from Trllium everything was sounding ok for the first few weeks but now when I walk on the floor I get alot of squeeking which I can tell its coming from the hardwood because I can see movement in the planks. How do I solve this problem?

how much expansion did you leave and is it still there?................

Was the movement there when you installed it?

There should be no movement up and down. It should be firm under foot.

Causes of movement include, substrate flatness specifications and requirements not being totally met, leaving high spots to teeter-totter on, and low spots to sink down into.
Another is lack of proper acclimation, or acclimating to a low humidity level, during the winters and the heater being used and now the floor is expanding/swelling, as the heater is turned off and we are coming into the more humid months. This can consume any expansion space left at the time it was originally installed.
Another is not leaving any expansion space at all during the original installation.

Ya, I'm thinking you have an expansion issue in this floor system. If the floor has swollen up and made contact with an immoveable object, perhaps a wall, ceramic tile or other obstruction, the floor will lift off the sub-floor; causing excess vertical movement.
Check the entire perimeter for sufficient space, cut additional material off the floor to allow movement where ever necessary.
But most importantly, get the humidity under control, if thats what has caused the problem.
Lack of acclimatization will be difficult to correct now.