No, they didn't have anything to do with the re-write of CC. As for ToH, like Erica said above, or at least hinted at, she and Scott have done most, if not all the conversions to 3.5. What is holding up a rerelease is if Bill and Clark think it would be economically smart for them to do so. They cannot afford to do as re-release that doesn't make money. Any short fall will come straight out of their personal bank accounts.
You guys want a ToH1 3.5? E-mail Necro, give them the confidence to take the marketing risk by giving them a good idea how many sales they would have. If they get 5 or 600 e-mails promising to buy a 3.5 they will do it, as long as WOTC wouldn't shut it down.