I purchased REX essential plus with overdrive on April 27, 2014; my Order number is 128073.
I cannot get the textures to load into FSX, let me explain, after installing REX I created a texture theme and installed it, then REX offered for me to fly by presenting the button that states "Fly now", which clicked. Once loaded all I was able to observe were the default clouds and sky colors normally in FSX. I used the REX weather engine which some times loads the weather just fine but most of the time it says the weather theme could not be loaded and to check the files to see if they're there.
So if you could help me that would be great. I have seen what REX can do and I'm excited to get it working with FSX.
Your assistance is much appreciated.