resizing images for posting purposes?

I need help. I have a digital camera, and would like to post an image here. I learned that I need a hosting service, so I signed up for free with imagestation. However, I don't know how to resize. It seems like I need to resize before I can post here. Any thoughts?
I brake for ear bars.
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Moreover... convert your images to paletted 8-bit as well.
Really cuts down the file size.
Russ, NCNE
But... you should be able to convert the images from 24-bit color, to paletted 8-bit, or grayscale, etc. May have to look for the option - but as expensive as that package is - I'd virtually guarantee it's there.
Esentially, what it does is goes through the image and eliminates all colors that aren't in the image from the palette. This makes a HUGE difference in image size, without compromising its quality.
jom