Will not open!!

I purchased the iword for 9.99 to try and make a resume. I went to open it and it did nothing! I went back tonight to try it again and its not even showing on my screen. I went to the app store and it says it is installed. I tried to open it from there, but it still wont do anything! Who can I contact for assistance?

AKCDF3 about iWord - Fantastic Word Processor for Multiple Document Formats