Help with scan and resize

Hello all,
I need a help from you experts or not. I am no guru, but after yesterday I feel kinda stupid. I was asked to do what seemed to be a simple task. I had to scan and resize. Original, physical picture is 1 1/4in X 2in. Scanned image requirements: resolution of at least 150 dpi, 600 X 600 pixels, 24 bit color, and keep it under 240 KB.
I have basic Canon scanner and CS2.
Help please.

Scan at 100% size at 600 ppi. Crop the image using the crop tool (holding shift to make a square crop). Then image size and size it to 600 x 600 using bicubic sharper.

Pixel dimensions and resolution are mutually exclusive. Ignore the dpi ... it sounds like you need 600 pixels. If the image 1s 1.25 then you need to scan at 480 ppi resolution to get sufficient data for the image. As you note, you need 24 bit color.

Also ignore the 240 KB at this point. This will be a final output, and you will probably wind up with a much larger Photoshop file. You will use Save for Web later to save to a jpg, png, or gif, which will be able to be under your 240 K.

Clear?
PS> Or what J. said, while I was writing mine.

Yes, looks simple enough. Will try it when I get home.
Thanks guys.