set thePath to ((path to library folder from user domain) as Unicode text) & "Caches:com.apple.Safari:Webpage Previews"
tell application "Finder"
if (exists folder thePath) then
delete folder thePath --move "Webpage Previews" to Trash
else
display dialog "Folder doesn't exist."
end if
end tell
dkmarsh—member, FineTunedMac Co-op Board of Directors