Sorry to hear. This It seems that your back housing for the screen gave out where the screws hold it in place. I just looked at the images you posted on flickr and it seems like it took accidental damage.
For this you will need a new lid and more than likely a left hinge. The parts will run you at least $50+ for the lid I would imagine (if you can find it).
On a side not you should be able to hold the left side tightly and open the laptop and use it, just do not close it if you plan on using it more.
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I would not have it repaired. I believe it will exceed the systems worth at this point. And it may have other parts to give out considering its age. I would just pull the hard drive and move the data to a new system.'''
Which ever you choose best of luck.