How to make internet image backgrounds transparent?

I downloaded GIMP from here today, and it seems clean

GIMP Image Editor for Windows download | SourceForge.net

OK, I downloaded GIMP. It's getting late in the day for me here, so I will have to let you know later how I did with it. I am marking this thread as closed and will start a new one after I get a chance to look at GIMP.

The hard part for what you want to do in GIMP is selecting the background. It takes a while to master, but there's plenty of tutorials on YouTube on using the fuzzy select tool combined with quick mask selection for this task.

Hi All,
This is the final update I spoke of in my last post. Like I said I downloaded GIMP and after trying all the other great suggestions I ended up following the You Tube video that wasnotwas had left here on an earlier post. There were so many steps I had to stop and replay the video to write down all the instructions. The result came out VERY well though, and all I had to do was export my saved GIMP image to a format my tee shirt websites use, like PNG.

So, a BIG THANKS TO ALL OF YOU for all your help, and I will be back next time I have a problem I can't solve. I'm also going to save this Windows 7 forum to my FAVORITES list because I'm glad I found it!

Glad you got it sorted.