I placed an order on the 15th, started to download the first item, but then item list window popped back up saying "download pending" for each item, no download command is selectable, and four days later it's still like that. What am I supposed to do? (I'm a newbie)

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5