The following worked for me in OSX 10.7 Lion
Go to the AppleScript Editor, past in the following script and save it in /Library/Scripts/Folder Action Scripts
on adding folder items to this_folder after receiving added_items
repeat with this_item in added_items
do shell script "find " & quoted form of POSIX path of this_item & " -exec touch {} \\;"
end repeat
end adding folder items to
Then right click on any folder in Finder, go to Services and click Folder Actions Setup. Cancel the dialog asking which script to attach. Click the checkbox to Enable Folder Actions, then click the plus sign to choose the recycle bin folder. Click CMD+SHIFT+G and type in ~/.Trash, click ok and then click open. Now on the right side click the plus sign to choose the AppleScript that you saved earlier. Thanks to Graham for the link which pointed me in the right direction.