Newbie problem removing Biztalk Application

I made a test biztalk application that has got messed up somehow. I would
like to remove it and start again but when I try to remove it with Biztalk
Server Administrator I get an error (see below). I have tried i) removed the
assemblies using the Assembly viewer and stopping the host instance. Still no
joy. Does anyone have any ideas?

TITLE: BizTalk Server 2006 Administration Console
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Delete of Enqueue failed (Microsoft.BizTalk.SnapIn.Framework)

For help, click:
http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.SnapIn.Framework.Properties.ErrorMessages&EvtID=DeleteNodeFailed&EvtChain=Microsoft.BizTalk.Administration.SnapIn.Properties.Errors+%2cApplication_DeleteFailed%3bMicrosoft.BizTalk.ApplicationDeployment+%2cRemoveApplicationFailure%3bMicrosoft.BizTalk.ApplicationDeployment+%2cApplyMultipleResourcesDeleteError%3bMicrosoft.BizTalk.ApplicationDeployment+%2cChangeRequestsFailed%3bMicrosoft.BizTalk.ApplicationDeployment+%2cEndTypeChangeRequestError

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ADDITIONAL INFORMATION:

Failed to delete application Enqueue (Microsoft.BizTalk.Administration.SnapIn)

For help, click:
http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.Administration.SnapIn.Properties.Errors&EvtID=Application_DeleteFailed&EvtChain=Microsoft.BizTalk.ApplicationDeployment+%2cRemoveApplicationFailure%3bMicrosoft.BizTalk.ApplicationDeployment+%2cApplyMultipleResourcesDeleteError%3bMicrosoft.BizTalk.ApplicationDeployment+%2cChangeRequestsFailed%3bMicrosoft.BizTalk.ApplicationDeployment+%2cEndTypeChangeRequestError

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Error while removing application "Enqueue". (mscorlib)

For help, click:
http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.ApplicationDeployment&EvtID=RemoveApplicationFailure&EvtChain=Microsoft.BizTalk.ApplicationDeployment+%2cApplyMultipleResourcesDeleteError%3bMicrosoft.BizTalk.ApplicationDeployment+%2cChangeRequestsFailed%3bMicrosoft.BizTalk.ApplicationDeployment+%2cEndTypeChangeRequestError

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Failed to delete resource(s). (mscorlib)

For help, click:
http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.ApplicationDeployment&EvtID=ApplyMultipleResourcesDeleteError&EvtChain=Microsoft.BizTalk.ApplicationDeployment+%2cChangeRequestsFailed%3bMicrosoft.BizTalk.ApplicationDeployment+%2cEndTypeChangeRequestError

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Change requests failed for some resources.
(Microsoft.BizTalk.ApplicationDeployment.Engine)

For help, click:
http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.ApplicationDeployment&EvtID=ChangeRequestsFailed&EvtChain=Microsoft.BizTalk.ApplicationDeployment+%2cEndTypeChangeRequestError

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BizTalkAssemblyResourceManager failed to complete end type change request.
(Microsoft.BizTalk.ResourceManagers)

For help, click:
http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.ApplicationDeployment&EvtID=EndTypeChangeRequestError

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1 unresolved assembly reference/s. (mscorlib)

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Remove""assembly "Enqueue.Orchestrations", version="1.0.0.0" first, it
references assembly "Enqueue.Schemas", version="1.0.0.0" artifact

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BUTTONS:

OK
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Nevermind. I found the problem.

Nevermind. I found the problem. My orchestration some how got moved to
another application.
I removed it there and all is good.