Using uLoader 5.1e, I can install tonnes of lovely wiiware wads but slipping onto /nand/install

When uloader comes up I click on fat, and all the wads are there.

Now, If I try the same with VC wads they seem to get accepted just fine by uLoader (usual text when importing titles), but can't see them on the fat section when I look.

Any idea what I'm doing wrong? Something else I should install?

Unfortunately the main uloader manual seems to be in Spanish.