Assuming you're using Windows of some variety, you almost certainly have "Paint." Look in Programs (Start|Programs).

Paint should be able to open your original .jpg.

You want your file size 600/1,760 its original size

600/1760 = 0.51

Take the square root of 0.51 = 0.71.

In Paint, choose Image|Resize/Skew and set both of the horizonatal and vertical sizes in the resize box to 70%.

Save As using a new filename (to keep from changing your original in case you want to do something different with it later). Make sure .jpg is selected for the file type. Your new image should be close to 600 kb.

The exact filesize you get may vary, as there is no control over the amount of compression the program uses for .jpg files. They appear to be only "slightly compressed." The "paper dimensions" (in inches) don't matter at all for web postings, as the browser will resize to show the pixels in the file at "screen resolution." (1" x 1" at 300 dpi displays exactly like 3.12" x 3.12" at 96 dpi.)

If the above doesn't get you very close to the filesize you want, I'd recommend re-opening your original and tweaking the "70%" to something in the direction of the change you want. (You might want to go with 50%, which should give you 1/4 of the original filesize, just so you don't push the "legal" limits of MySpace. They may accept uploads of larger files, but they'll compress them additionally in most kinds of posts, so they'll look like **** anyway.)

NO NEW PROGRAM NEEDED - although if you're going to do much of this sort of stuff almost anything is better than Paint.

John