Run a search (you got Windoze, right?) for one of the files you deleted.
To delete the files, try right-clicking them (while they are still in your shared folder) and selecting Delete from there or drag and drop them manually in te recycle bin.
I would suppose that the files are indeed somewhere still in your PC since, if I remember well, you need to do a Empty Recycle Bin procedure before they actually are completely erased.

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

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And seal your fate forever
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