i know all about useless fighters. i happen to have a few of my own, and they do what they can, but it's not easy. sometimes they're over on TA, helping with the fight there, but a lot of time, i just use them to collect much-needed items on larkinor, to make it easier for my other guys to upgrade.
also, some of my poorly-built fighters, i deleted, just to make time/space for newer, better-built ones. sounds like you've already got one of those you're working on though, and that's great. i'd still be willing to send your original guy up at lvl 30, so you can get a feel for what it's like, so you can learn the tricks, and so when your younger char's are ready, they'll see how much better they are. c'mon over to chat when you get to lvl 30 :)
--jason