No worries. I don't think you are taking advantage. We all have real lives that take priority.
Anyway, about the dol file. I know you say you have a dol downloaded from a week ago but since you have PriiLoader autoboot in into USB Loader GX there is a possibility that it is booting an older version. You see because in order for PriiLoader to autoboot, the .dol file has to be installed into the Wii. The right thing to do would be to install the Forwarder .dol file so that PriiLoader will autoboot the forwarder which will then launch the loader dol in the apps folder. But if you have installed the full version of USB Loader GX dol file into PriiLoader then it will always boot that version and ignore whatever dol file is in your apps folder. I hope I'm explaining this well for you and that you are getting it. If not, don't worry because I will still get things working for you anyways. Lol.
It can get even worse. If you have the actual loader's dol installed in Priiloader when you update you end up with the new version on your SD and the old one booting at start.