Well, it is basically moving due north (Talking about the Gulf ULL)...There is a slight hint of it possibly moving a snudge west of direct north. I am/have been watching of the Gulf Water Vapor...Here is the Link:

Link: http://www.ssd.noaa.gov/goes/east/gmex/loop-wv.html

Upper Level Lows work a little different than tropical cyclones...Lots of optical illusions...It is very understandable tofind a center hard to locate, so I see whay you may see it as heading west. However, the Northern most center point was roughly at 26N, 92W at 4:15 UTC (Z). Earlier, the center was farther south at about 25N, 92W at 22:45 utc (Z)...A difference of a about 5 hoursand 30minutes of almost due northward motion...Hope this helps.