Hi WiiCrazy!
Since the recent builds of USBloader GX (r950+ or so), the forwarders no longer work. (at least for me; loading within GX works flawlessly)
Dimok rewrote quite the whole thing, so there definetly changed something.
Maybe you could look into this, and get some new loader code (or whatever the problem is)
(or need this to be fixed in GX?!)
There is also a new forwarder branch in the GX repo, maybe this might help you.
thx