its fully able, its just that as it uses wget to do the http downloading, and wget have some issues with urls that do not end in a clean filename (basically it do not understad get style urls. hell, i dont think it understands anything beyond http 1.0), resulting in mangled filenames...

just insert whatever filename you want and hit save...

btw, i wonder if we should try and get curl updated for tear usage if the community ssu project takes off. That is, if it can be done without breaking something nokia related...