InCopy/InDesign Workflow using Widen/Acquia DAM

I'm interested in setting up an InCopy/InDesign workflow. Our company uses Widen/Acquia DAM to store our files. Our first experiments have failed, and I suspect it's because Widen/Acquia doesn't support .idlk files. I'm wondering if there might be an alternative way to set up a check in/check out process using Widen/Acquia. Has anyone here successfully created an InCopy/InDesign workflow with Widen/Acquia? And if so, how? Thanks!