This appears to have everything working.  Thanks for your help Dave and Bob..

On Sat, Sep 7, 2013 at 4:17 PM,  <commits at source.squeak.org> wrote:
> A new version of Monticello was added to project The Inbox:
> http://source.squeak.org/inbox/Monticello-cmm.569.mcz
>
> ==================== Summary ====================
>
> Name: Monticello-cmm.569
> Author: cmm
> Time: 7 September 2013, 4:16:59.096 pm
> UUID: fa7434e5-a2e7-453a-ad96-aa689768ba31
> Ancestors: Monticello-cmm.568
>
> Fix for serializing MCDefinition requests.
>
> =============== Diff against Monticello-cmm.568 ===============
>
> Item was changed:
>   ----- Method: MCHttpRepository>>serializeForRequest: (in category 'private') -----
>   serializeForRequest: aMCDefinition
> +       ^ ((ReferenceStream on: (RWBinaryOrTextStream on: ByteArray new))
> -       ^ ((ReferenceStream on: (WriteStream on: ByteArray new))
>                  nextPut: aMCDefinition ;
>                  yourself) contents asString encodeForHTTP!
>
>