[ubuntu] Can I recover data after my Ubuntu (wubi) has been uninstalled?

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http://ubuntuforums.org – I was running Ubuntu 11.04 through Wubi on my PC and I decided that since I don't use it all that often i would simply get rid of it. I (thought I had) put all of the files that I needed onto an external hard-drive and then went ahead with the uninstall. I realized only afterward that some very, and I mean very, important data was left off of the external harddrive and was likely wiped out when i uninstalled Wubi. Is that data still on my computer somewhere? Can I get access to it through windows? Help! (Hardware)