Please download and isntall cloud version with the link below:
For 32/64 bit: http://file.appeon.com/download/APB/2015/GA/build_0256.00/APB-2015GA-AS4Cloud-AP-001.zip

You can find above information in Appeon news below:
http://support.appeon.com/index.php?/News/NewsItem/View/44/the-appeon-for-powerbuilder-2015-ga-version-is-officially-released