Can you help me save this? I bought it two months ago and it fell over at one point in the pot and then my house-sitter didn't water it for 8 days while i was out of town. The person I spoke to at the garden center thinks it's just in shock. I also probably planted it in the wrong type of soil...should I pull it out and replant with more bark? Thank you!

I would leave it alone, perhaps move it to a partly shady spot, and just let it recover. It may look scrappy this year, but see how it does next spring.