Back end understeer eh, from a remark like that one would never have guessed setting up isn't your forte
Do you mean understeer (it goes straight on) or oversteer (its always going sideways - back end sliding out). I'm assuming as its front drive (yuck) its understeer and might want to soften the front a bit (more mechanical grip) or stiffen the rear to get the same effect or wind the brake balance to be more to the rear and brake into the corner to unsettle the rear. Failing that you could try softer tyres on the front than on the back.
Anyone else out there actually know what they're doing? (As I don't really).