It is unlikely that we will be able to add satellite background imagery as the costs are too high - the MapQuest tiles were a free service that has now been discontinued. We have made some enquiries and the costs we are talking about would be approximately 1/3 to 1/2 of a full ReefMaster license per user, per year - which simply isn't viable. One possibility might be to allow use of Microsoft Bing maps to users who have their own subscription.
There are better methods available now than taking GE snapshots. What you need is an MBTiles file of satellite imagery covering your area of interest - have a Google for SAS Planet.