Hi from down the road in YXX! Don't know about the pedals at all, but I have the Gladiator II. I've had it for ooooh must be 5 years. It came with no software and no manual but it worked fine out of the box. In FSX and FS9 I use FSUIPC to program it but equally it worked without that and could be programmed using the sims internal settings. It also is recognised no problem in IL 1946, Great Battles and DCS. The hat in those is a pain to be honest.
They don't seem to make my version of the stick any more though. It's probably all a Soviet plot.