THANK YOU!!!! I changed the EPST info to look like the post you referred to, and then I went back and compared the EPST settings currently in my phone to those in my phone's original settings which were the same as those listed in maverick's original post (specifically the M.IP settings). Five of those settings were different so I changed them back to what my phone originally had, and it was blue sky, sushine, lollypops and puppies!! I looked back at maverick's directions and it said "If phone calls and data don't work, do the following." It didn't say what part of the instructions fixed which problem (phone or data). The phone worked for me and data didn't, and I couldn't get the first part of the instructions so, based on your suggestion, I just tried the EPST part of the instructions. Voila!

I'm not sure which of the M.IP settings was the one that actually made it work, but I DON'T CARE!!! Now my phone, data, and GPS. Thanks again, now I can customize it to the way it works for me.