If I understand your question correctly, you want to know how to extract the movie sub-titles from WC. Well, WCP is easy - IIRC, they're in the language directory somewhere. Check my TRE index to be sure.
Oh, of course, you have to use HCl's TRE manager to extract the files from the compressed TREs first.
WC3 and WC4 is harder because TRE manager can't extract files from the 'XTRE' format very well. I haven't bothered to look into this too much, but I still have TRE indicies for WC3 and WC4.
If all else fails, you can just read the dialogue scripts from my website (follow the "quick links").
hooray for wedge.
BTW, there are no subtitles in Priv2, unfortunatelly.
Hey, Now that I mentioned that, I can get me no subtitles in WC4DVD using Gulikoza's thingamajjig. Is that supposed to be so?