How full is your hard drive? It sounds to me as though the game doesn't have enough space to install as even though they need the disc to run, they need a certain amount of HD space to install and perform.
I'm having the same problem with the same game. I have 3 Gb memory and it says I need 60Mb. Plus I have 152 GB of free disk space. Have you found a solution yet? If you have, please let me know. If not, I hope you are able to :)
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