cool camera. I put one that size into a toilet pipe.. (I'll explain later on GFY.. but it might come in handy for you too, but I digress)
Your specs say this: White balance: Auto/Outdoor/Indoor/One-Push
It definitely looks like a WB problem.
You might want to try a few things. Simpelest is to fuck with the WB setting and see if you can correct it. From the specs it doesn't sound like you can.
In that case you might need to gel the lights. Go to any of the thousands of expendables shops in LA and get some Color correcting Blue gels to correct tungsten lights. That shit is cheap and can be very useful.
I didn't read it completely but this article looks like it will be useful to you.
http://www.videomaker.com/article/7444/
And also try that modeling technique. Here is a simple yet effective method.
(taken from here)
http://www.videoccasions-nw.com/volitbas.html Use that one as a main and one as a fill.