Actually, if you are using Drox then you want to be sure Infomap is completely extracted into \Sony\Vanguard\VGUIAssets\Shells\DroxUI\Map.
Then be sure that your index.xml has the following section in it still (as Drox supports the generic map format)
<!-- Support for independent map projects -->
and also in skininfo.xml
<!-- Standardized Map Skins -->