I get this error when tryng to upload a pdf
You are trying to import a pdf under a 64bits versions. This option isn't available for this version  
It depends on the PageFlip's version you've installed on your DotNetNuke.
We provide a 32bits version and a 64 bits version for this module. Only the 32bits version include the pdf import feature because this feature doesn't work for now on a 64bis OS or more precisely on a 64bits application pool.
Hi three was only one version available to download from snowcovered.... how do i get the other version?