Opendeploy not overwritting

System

Hi,

I have a problem with opendeploy not overwritting existing file on our opendeploy receiver.
Some of the files will get a extension iwtmp behind.
Example
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I deploy "helloworld.xml"(already exist in receiver) into my receiver but over at my receiver end i get "helloworld.xml.iwtmp" ..it is not overwritting ..This looks to me like a tmp file creating by opendeploy..I dun get a ny error deploying.Only notice this when we browse through the physical path.
What could be the problem?

Thank You