Yes, in last update we auto formatted file name as title as there were lots of requests for this from users, however, if you use the file name as title (ie: default_old.zip) , it will show as you apply.
It is because probably any other active plugin controlling wpdm post type access when not logged in. I tried to open url like http://www.mybizmeet.com/download/calcolo-imu-2013/ , it showing 404 when not logged in, may you please try deactivating any recently installed plugin, or let me know if I can do that. Thanks.
Still no clue on what Link Templates do vs. the FrontEnd “Category Page Options” section in Settings…
Link template generates output of package short-code and category short-code. Category page option, actually try to change theme’s wpdm category taxonomy page content but most part of the page will totally depend on theme.
Dashboard is ok now. In v4.5.5 the short-code is changed a bit, many user were requesting to add option for controlling recommended download, you can use user package ids there separated by comma [wpdm_user_dashboard recommended="317"]
