You appear to have the latest machine. http://www.cpap.com/productpage/respironics-pr-system-one-cpap-heated-humidifier.html
Link above is to the humidifier that goes with the new PR system one machine.
While I have the older version of EncoreViewer that works with my M series machine, I do not believe it will work with the new machine.
If the new software is anything like the older version it doesn't present easily for obtaining other than by disc or a direct download from somewhere. I am not aware of any place to download the new version (there never was for the old version of EncoreViewer either). But I haven't looked either, so maybe someone here might be able to tell you if there is a place to download even if it did cost money. I am short on time or I would go look around for it. I am going to have the dreaded colonoscopy shortly......
The software can be purchased from cpap.com. You might check to see if they could possible get it overnighted to you to have it by Thursday but you would have to decide quickly...http://www.cpap.com/productpage/respironics-encoreviewer-software-generic-usb-sd-memory-card-reader.html