Can you test your analog controller with:
https://www.psx-place.com/resources/ps2-controller-tester.670/.
Copy
padtest.elf to a USB device.
Launch it with wLaunchELF.
As for HDLOADER, look for it on a memory card.
Start wLaunchELF, enter
mc0:/.
Look for
HDLOADER.ELF in
APPS or in
BOOT folder.
Additionally try to delete OPL's settings from the MC Browser:
BTW: Are you now on OPL v1.0.0?
Check that in "About" page: