i have sorted it, i deleted ALL the drop files and the server was designed to replace all files for any monsters in the DB, so it gave me all the files back with blank item lists. thus removing the archer and assassin items
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it means i have to build the drops up from scratch but hey at least the items i wanted gone are gone, thanks all for your help.
i do believe tho that the problem was that the server was detecting i had changed the .txt's and wanted to replace them as its designed to but couldn't as it still existed.