whats up man. Yeah, I had troubles with this in the beginning.
First, you need to convert one sample to a multisample, then convert that into a program.
When you load the samples into the Triton, go to SAMPLE mode. Click on the arrow where its says ASSIGN just below the picture of the keys. Your loaded samples should be in there. You need to keymap and edit your samples yo your liking, then save them to a MULTISAMPLE. upon editing your sample, go to MULTISAMPLE at the top, choose a slot you want, and convert your sample to multisample. Click down on the ASSIGN arrow and pick another sample. Edit it the way you want, the load it to a different multisample number.
Now convert all these multisamples to PROGRAMS.
Have fun.