"We are definitely still interested," said Williams.
"We are still working behind the scenes to put everything together, and when we have done that, we will get back in touch with the club again.
"At the moment, there's not a mad scramble to try and get something done because the transfer window has just closed, and because of that, people are assuming the deal is dead.
"But that's not the case at all."
The deal to buy Rovers initially faltered due to a sizeable difference in the respective parties' valuation of the club, but, with that obstacle having been successfully negotiated, Williams admitted the more recent complications were at his end.
"At first, we didn't think the club was doing its bit and they weren't giving us enough information concerning a right and reasonable valuation.
"Then, more recently, we've been responsible for a lot of the delays because we haven't been able to get everything together that the club has needed from us.
"If we'd have put a bid in by August 1 and then rushed through the due diligence, we might have had a chance [of getting something done before the transfer window].
"But we probably dropped the ball a bit in July and now there isn't that same sense of urgency because there isn't a lot we can do before January.
"It's not as if the club is in financial peril. The trustees are running Blackburn nicely, with John Williams as chairman, and if we came in between now and January what would we do? We'd still have John as chairman, and we'd be trying to run the club as well as the trustees have done.
"So there isn't a massive urgency to get things done now, which has perhaps taken the pressure off a bit."