The problem with your request is you're not talking about the specific, but to the general, and how badly people can interpret your request.
An example of this is if you wanted to download teen porn from ImageShack, then most of the people here will reply that they won't help you because mIRC isn't meant to do that.
But if we taught you how to download from any url, you could then use the same trick to download .mp3 files rather than .jpg, or other files that could be illegal, which we wouldn't want to help you with, or even harmful to your computer, like .exe files which could be viruses.
So how hard is it to right-click an image and save target as?
Or maybe you want to mass download a bunch of files.
But as far as using in-line images, you can just /run iexplore.exe $1 or whatever you use. There's also the /url -a command. Basically, you open up a browser to go to the page, and the image would be stored in your cache. If you want to open with Firefox, though, you will need some on hotlink events.
-Neal.
