<human>: I was injured on the job in South Carolina in early 2010 (meat slicer, ouch!). I informed the ER at checkout that this was workman's comp, but somehow the bill went to my credit.  My employers reviewed the security footage, and acknowledged that they were monetarily responsible for workman's compensation (I was not at fault).
Being young, 20 at the time, I figured it would be enough to forward my bills to my employer, and they would just take care of it.  Boy was I wrong.  Both bills (ER split the ~$2k into two accounts) went to collections on MY credit.  I sent every single bill to my employer (and kept copies for my records), begging them to work with the collections company and get it off my credit and onto theirs.  Then I started getting bills addressed to my house, but with their names (fishy?).  They were paying the bills, slowly, about $100/month at first, so I kind of put it in the back of my mind.
Flash forward 4 years later, and there's still remaining a $425 collections account on my credit.
I'm at a loss of what to do. I want this debt OFF of my credit report.
At this point, I would seek reparations/damages for the grief I have suffered in the past 4 years (I graduated from college and moved to California: hello, I'm broke!), but would it actually be worth taking them to civil court? If so, how would I go about it?  
Would I file my claim in SC or CA?  What kind of lawyer should I seek out?  Should I just seek a settlement claim? 
Most importantly, how do I get this off of my credit!!???  They've gotten away with this for 4 years, and I want them to PAY.
(Sorry for the all the questions; I'm hopelessly inexperienced in this field)

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: A valid workman's comp claim from a former employer remains on my personal credit score (SC). 3 years later, I now live in CA. What do I do?