Oh. Here I thought they were about:
figuring out where the groundwater and contaminated water are coming from, and how much;
diverting the groundwater from the contaminated areas;
decreasing the amount of water injected into the reactors to reduce the amount of contaminated water to treat;
possibly diluting and dissipating if only tritium is the issue;
building welded tanks to replace the assembled tanks;
coming up with different ways to cool the reactors that do not rely on continuous injection of water; and
creating a human resource management system so that the workers at the plant (other than TEPCO employees) can work with decent training, pay and benefits.
According to TEPCO and Mr. Lake Barrett, a former US NRC official advising TEPCO, it seems it is more about how the problems are explained to the rest of the world, since the contaminated water is well contained.
From NHK News (9/13/2013; part):
Contaminated water "more effort to communicate with the world"
Mr. Lake Barrett, former US NRC official who directed the decommissioning work for 4 years after the Three Mile Island Nuclear Power Plant accident, attended the meeting at TEPCO headquarters as an outside expert.
At the start of the meeting, Mr. Barrett said, "Despite the large amount of contaminated water at the site, I think it is properly contained by the maximum effort [by TEPCO]. It is a difficult problem with the very complex groundwater flow, but I would recommend that the efforts not only be for technical control of the water but also to improve your methods of communicating to the world the situation that's actually there at the site." [From "I would recommend..." onward, it is Mr. Barrett's actual remark as heard on the NHK video.]
Mr. Barrett also suggested that problems should be dealt with before they become problems, and communication be improved by disseminating information in a way that is easy for the general public to understand.
TEPCO's President Hirose said, "With the advice from experts, we will do our best to communicate better with the general public including the fishermen, and to reinforce measures [for contaminated water].
Mr. Barrett, according to NHK World news from 9/12/2013, visited Fukushima I Nuclear Power Plant on the day before (9/12/2013) and inspected the tanks himself.