The Raiser's Edge AuctionMaestro Pro Integration was built for AMPro 4 - the latest version of this as of 2017 is 4.99, and this is the final version of AMPro 4. This integration requires that the AMPro databases be accessible from within The Raiser's Edge. When RE7 (and RENXT) is hosted, Blackbaud servers are not able to connect to the AMP database files on your local network.
The AuctionMaestro Pro integration is not available in the Blackbaud hosted environment. MaestroSoft has released versions of AuctionMaestro Pro after version 4.99. Version 5 is the following generation of AMPro as of 2017. One of the features is that it combines the .peo and .auc files into one event file. This version uses Access 2010 as its backend, and the AMPro/RE7 integration is not compatible.
MaestroSoft has developed the Raiser's Edge Sync Utility (RESU) with their partner JMG (who have also developed the JMG Super Import Exporter RE7 plugin), and it uses the "maestro cloud" as a way point so that AMPro 5 and the JMG SIE plugin can pass .CSV files back and forth. By using the web service this way, the RESU is compatible with RE7 (local), RE7 (hosted), and RE NXT. This utility and all previous versions of this integration is supported by Maestro, not Blackbaud. For questions on compatibility, functionality or future enhancements please contact MaestroSoft.