This requires a bit of scripting, I’d prefer Linux / bash as it is right now, but there might be other ways.
Might be it could be done with a BAT-script for Windows users
http://www.cygwin.com will provide you with a lot of options, but it might a bit daunting – throwing you into a very Linux’y world.
Beyond the controlling environment, you need a copy of “wget” or possibly “curl” – both command line tools from the Linux world.
These will both grab the response on a URL “GET”, into a file if you say so (default is “print it”).
ULR: simple text – the very same you type in the address field of your browser.
You need these:
will create a list of ALL photo ID’s among other things, when given ONLY the user ID.
will give you the info about one of the photos, based on the ID.
Oh, http://www.flickr.com/services/api/ you need to read the “Read these first:” texts to get somewhere at all.
… ^– that is all the basic info you need. Now the remainder is a bit of scripting.