This is not a straight forward request - companion mods require an understanding of scripting and you haven't stated exactly what was causing you problems
As a start I recommend downloading http://planetelderscrolls.gamespy.com/View.php?view=mods.detail&id=793 who is situated in the fighter's guild and is easy enough to change from female to male - her script is dated in comparison to some of the advancements melian made in scripting - in fact if you really want to see the power of a well scripted companion you can look at melian's http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=6969 mod - Melian made this character as both a nice companion to have and as a template for other modders to learn from - personally I find her work very advanced as she uses a lot of scripting in the dialogue results box.
kir, Jac, abot and a few others still check this forum and offer outstanding advice on how to get your scripts to work - while you wait for them have a look at the links I've posted and consider reverse-engineering these mods - though I do think changing Hilda from female to male is your quickest path to getting what you want.