I noticed that in order to add an entry to the enterprise list, it can only be done via the SOAP network interface. So does this mean that I would have to get the IT or the person in charge of the SCS to add an the entry for me.
Also noted that there is a list of predefined Storage Partner Applications, how would I go about getting my Vendor, Application added to the list?
That is correct,
You can only add and remove enterprises and edit the list of partner applications remotly and 3PDS is basicaly unusable unless an enterprise is added. If you have administrative rights to Intel AMT, you can use Intel AMT Commander to add a new enterprise and edit the partner list. Once done, you can use Intel AMT Outpost or your own tool to access 3PDS localy.
Ylian (Intel AMT Blog)