Hi David,
If your still having issues and want to test there is a free developers copy.
Follow this:
Your can only get the current version without a SAP Service Marketplace account.
There is a trial version of the SDK I think they got SDK 15.7 SP132 SP130 and SP127 up on the site currently.
Please do the following:
.
Go here: http://scn.sap.com/community/downloads
There is an article titled "The SCN Download Center is Now on the SAP Store: What's New?"
In this article there is a link to the SAP store click it
Than do a search for "SAP SDK for Adaptive Server Enterprise"
Click the free trial and it will ask for your information and send you an email.
From the link you get you should see a list of the SDKs.
This is also referenced in this SCN blog: http://scn.sap.com/thread/3636256
Thanks,
Dawn Kim