You are unlikely to find those other owners and you could increase the chance (slightly) if you had put the name of the headset in your discussion title.
All that aside, it may be time to get some other splitter or extension cable to adapter this to what you have. I can not do this over a forum discussion. I would have to have the product at the work bench.
I have recently bought a Promate Valiant headset ( it uses usb and came with a jack splitter/adapter to connect to my pc) and I have spent a lot of time figuring out why the microphone didn’t work properly and the sound quality was bad. I have tried many methods and updated all my drivers, but I think I figured out what the problem was: my headset’s jack is ~1 mm too long for the hole in the splitter/adpater (the hole is 3.5 mm deep). I want to know if this is a reasonable hypothesis. I also want people that know about the Promate Vailant/own it help me figure out what im am doing wrong.

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