Parentologic file cure

I recently enrolled in an ebook program from my local library. When I started click on the download option a filedown load window appeared and ask if I wanted to open or save. I chose open and IE Security window that said a website wants to open.... Parentologic file cure. I wasn't paying much attention so I click okay and the program begin to scan by file .exts. After teh scan I was asked if I wanted to correct all of the .ext problems. At that point I decided this was not the software that I was expecting so I exit from the site and uninstalled the software, which had been installed. However, now when I attempt to download a book I am always directed to this site and the book will not download. I have deleted the cookies and history from IE without any success.
I am looking for any suggestion on how to resolve this problem. The local library has not been any help.