Remove the seats from the car or remove the bottom cushion? There are two bolts on the back of the seats that need to be taken out then the seat will slide back and you'll be able to rotate it up. Then you need take a few bolts off of the bottom on either side of the cushion, that's pretty self explanatory after that I think.
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For the bottom cushion, just push the seat cushion back(towards the trunk) from the front edge while pulling up to unhook the seat frame from the hook. You'll have two points on the seat to release. More or less, the hook points are centered on the left passenger and right passenger seat sections.