new a vmware project (create hello world plug-in project),how to use it as a normal plug-in on orchestrator??

in use:

eclipse sdk (indigo 3.7.2) windows 7 64bit

vcenter orchestrator 5.1 (windows 2008 R2)

vmware - vco- plug-in SDK 5.1

i installed vmware-vco plug-in sdk 5.1 to eclipse 3.7.2,then i created a vmware project(choose create hello world plug-in project)

how to do next??

I  export the project as a jar file,rename it as .dar ,and put it to the vmware/infrastructure/orchestrator/app-server/server/vmo/plugins,,

then i upload the .dar file,,it reminds me installed failed....

thanks so much!!!