Cpurvis,
Have you taken measurments at all? I was discouraged by my results one month, but my Nurse suggested I start keeping track of my measurements. With all the walking you are doing, it may be possible that you are gaining muscle and losing inches, rather than pounds. I haven't had a PB yet (and I was banded almost 4 months ago...7.2cc in a 10cc band), but you may want to talk to the doctor about that. The band works best with solid foods, so if you can't get solids down, then that may answer your question. If you are eating only mushies and/or liquids, then you may be consuming too many calories.
As for what lanejane said about having no restriction...just wait. I didn't really feel any restriction after the first 2 fills, but I just had fill number 3 on May 16th, and I think I am very close to my "sweet spot". Trust me...you will start feeling it more and more with every fill.
Just some things to think about...good luck and don't get discouraged!