I downloaded the InDesign Server CS2 software through the Adobe On-line Licensing website, but it doesn't include the SDK.
Adobe's website does offer the CS3 Server SDK, but the CS2 Server SDK is not listed for download. Is there another place where I can download it from?
I'm currently not a member of the Adobe Partner Program.
There is no separate InDesign CS2 Server SDK. The InDesign CS2 SDK at http://www.adobe.com/devnet/indesign/sdk/ includes samples and documentation for InDesign Server. A separate Server SDK was added for CS3 because of the extra complexity of the Java/Corba features in CS3.