XnView Software

Should I uninstall my present version of xnview before downloading the new one?

Thanks Xn Triq The first media detector is the one that won't unzip for me. The second one I don't understand. It looks like a list of various XnViews. I don't see anything about a media detector. Maybe i don't know how to read/interpret the list - ?
OO

Thanks Pierre - but it won't unzip. (I took it from this site. Is it still viable?)
Thanks OO

I recently got a Windows 7 - which doesn't have those handy-dandy photo downloaders of yore, just crappy windows downloaders. Can i download my photos directly into XnView? If so, how?
Thanks