Yes TMT Platinum does work for both formats. I use it on Win7 with an LG combo drive.
On HD-DVD in TMT there is no bitstreaming support for one of the advanced audio codecs, either TrueHD or DTS-HD/MA. I cannot remember which one works and which does not.
If you really want to ensure it works with your setup, just download the software and try it. There is a free trial period.