BizTalk Setting up a recive location and port using the HL7 Adaptor

Just installed BizTalk 2010 and the HL7 adaptor, trying to set up a proof of concept application through the admin console:

1)Created a new 'Demo Application'
2)Created a request/response receive port
3)Created a request/response receive location associated to the receive port
  3.a) Set the Type to MLLP
  3.b) The only options I see for the Recieve pipeline are:
    PassThrueReceive
    XMLRecieve
  3.b) The only options I see for the send pipeline are:
    PassThruTransmit
    XmlTransmit

How do I get the BTAHL7X and BTAHL7XML receive/send pipeline components to appear as an option?

I've tried adding a reference to BTAHL2XMLPipeline.dll and BTAHL72XPipeline.dll but I get an error:

Failed to add resources to application.

For help, click: http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2010&ProdVer=3.9.469.0&EvtSrc=Microsoft.BizTalk.Administration.SnapIn.Properties.Errors&EvtID=AddFilesForm_AddFailed&EvtChain=Microsoft.BizTalk.ApplicationDeployment+%2cApplyMultipleResourcesAddError%3bMicrosoft.BizTalk.ApplicationDeployment+%2cSatEntryExists

------------------------------ ADDITIONAL INFORMATION:

Failed to add resource(s). (mscorlib)

For help, click: http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2010&ProdVer=3.9.469.0&EvtSrc=Microsoft.BizTalk.ApplicationDeployment&EvtID=ApplyMultipleResourcesAddError&EvtChain=Microsoft.BizTalk.ApplicationDeployment+%2cSatEntryExists

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Resource (-Type="System.BizTalk:BizTalkAssembly" -Luid="BTAHL72XPipelines, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35") already in store. 1) Use BTSTask's overwrite flag or 2) Set redeploy flag to true in BizTalk Project or 3) Click overwrite all checkbox in Admin MMC to update if the resource exists in the specified target application "DemoApplication1". Overwrite flag will be ignored if the resource is associated with another application. (Microsoft.BizTalk.ApplicationDeployment.Engine)

For help, click: http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2010&ProdVer=3.9.469.0&EvtSrc=Microsoft.BizTalk.ApplicationDeployment&EvtID=SatEntryExists

In your new application, do you have a reference to the default application?

From the BizTalk Administration Console, Right-Click on the application and choose Properties.... In the Properties screen, choose References. You will want to add a reference to the default application here.

If you do have a reference to the default application, has the adapter been registered?

From the BizTalk Administration Console, expand Platform Settings and then right-click on Adapters. Select the New > Adapter... option and then look for MLLP in the dropdown. Select MLLP and give it a name of MLLP and then select OK. At this point, you should have the MLLP adapter available for use.