Oct 23 2012, 04:56 AM
Most image editing software has this neat feature that allows you to resize the canvas area. Paint.net off the top of my head also lets you pick which direction the canvas will be resized onto.
Regardless, open one picture in a program that supports transparencies, such as GIMP or Paint.net, and resize it in the direction whereon you want the second image, by the second image's height, then copy/paste it over.
The only reason off the top of my head that you'd need to know how to do this after presenting two images with functioning transparency is that neither is your property and you don't know what you're doing, but want to make a 'something' really badly. And if you can't figure out addition or basic features even MSPaint has, your chances are questionable at best.
I might be overstepping my rights to say that we are here to help you, not do your work for you.
Oct 23 2012, 05:24 AM
This isn't the place to post this. Unfortunately you need to be a Revolutionary or above to post in the Resource Request Topic. Therefore I am locking this topic.
Also ZarroTsu is actually right. You can just the icon sets together. GIMP
and as Zarro said Paint.Net
A simple look on google would assist you in finding tools and advice you'll need