OK, I figured out my problems with creating a patter from a JPEG!
However, I'm wanting to create a pattern that will not have seams in it. For instance, I'm filling a path that is about 12 inches by 12 inches with the pattern I created, but there is a seam running right through the center of the filled area. Anyway to create a pattern without seeing seams?
Only by making your original image that you used for the pattern larger than the area to be filled or by having repeating elements on all edges. Generally rasters don't have the elements to make a repeating pattern. If you have a regular, repeating pattern in the raster, then you just have to make the the background bounding box (nofill/nostroke) cut the pattern at an easy repeat.
That's the trick. Thanks a ton!