Be patient! You're not the only one in that boat. I have a very large one at 99% & I've been waiting too. If you find that item in your search results & if it doesn't start dwnlding, delete it from the dwnld list & reselect it to dwnld. Try this several times (if it starts from zero, delete it & select another until it starts at 97%.) Some files are difficult to connect to.
As a general rule, try to dwnld those that have a multiple star quality rating.