According to the Pittsburgh Tribune-Review (http://www.pittsburghlive.com/x/tribune-review/opinion/s_169770.html), Heinz gives millions to The Tides. Out of those millions, The Tides sent $489,000 to The Iraqi Peace Fund (in just one year, I believe), who then sent money (the amount was not specified in the article) to MoveOn.org. There must be a way of determining that amount, but I don't know it.
The entire purpose of The Tides is simply to launder money from rich donors to organizations that they don't want to officially be affiliated with. Like, say The Ruckus Society, whose official mission is to teach anarchists how to smash property effectively. ("I think you can be destructive, you can use vandalism strategically. It may be violence under the law but I just don't think it's violence." - Ruckus Society director John Sellers)
To me, it sounds like its legal within the asinine CFR framework, but runs seriously afoul of RICO laws (not that liberals are subject to the law.) It's money laundering as well as racketeering and conspiracy to break laws.