I note that Owncloud isn't in my APS app list despite being in the application list on the APS site. I've truncated the APS table in ISPConfig and cleared the cache in the ISPConfig folder before updating the package list, still no sign. Does ISPConfig get its listing directly from the APS site? Is there any reason why Owncloud might be missing?
The difference in the api level seems to be low, but the 1.2 api level uses a completely different config file scheme, so it will be nescessary to write a new installer to support it.
