All the walkthroughs tell me to use the stairs on the side of the piramid to get in to the first one, but the bottom is broken and I can't jump onto the stairs
I believe this is one of the pyramids you have to climb up the side of and work your way down. Look at one of the other sides of the pyramid. There should be an area that looks like run down brick. You should be able to climb up on that.
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-Damian
Fear is the path to the darkside.
You have to push the block over to the stairs on the side of the parimaid before you can get to the stairs.