storage question

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http://askubuntu.com – Recently I installed Ubuntu 12.0.4 using WUBI with my current windows vista. I have already installed all the 265 updates from the Ubuntu software center and downloaded deluge from there. Now the question is this, My hardrive is 80gb according to the disc usage analyzer. It also says 31.2 gb used and 47.8 is free. The confusion comes when I run deluge. At the bottom it says 2.0gb free space. Is that 2.0 gb just a size set from the torrent client and can be changed or am I limited to just that 2.0gb? Thank you for any help and if I did not give enough info please let me know what you need. (HowTos)