Hi George,
Good question for Netscape 7. I couldn't find an option in preferences for download location. Usually, it asks where do you want to save it when the download is done. I'd guess to open the download manager and see if it gives a hint.
Safari, open preferences, go to general preferences, there will be an option for save downloaded file, which will give the location where all downloaded files will go to.
In Internet Explorer, go to preferences>recieving files>download options>download folder. That will tell you where IE is storing your downloaded files.
Each browser handles their downloads just a little differently. What browser are you using?