I'm not endorsing this, but here's what Znet says about them. Hopefully this will help to start to fill the vacuum, because I haven't really heard any arguments about what they stand for. If there are reasons liberals should support them, I hope they pop up in response to this thread.
A few years ago, a friend of mine was sent to Kiev by the British government to teach Ukrainians about the Western democratic system. His pupils were young reformers from western Ukraine, affiliated to the Conservative party. When they produced a manifesto containing 15 pages of impenetrable waffle, he gently suggested boiling their electoral message down to one salient point. What was it, he wondered? A moment of furrowed brows produced the lapidary and nonchalant reply, 'To expel all Jews from our country.'
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It is because of this ideological presupposition that Anglo-Saxon reporting on the Ukrainian elections has chimed in with press releases from the State Department, peddling a fairytale about a struggle between a brave and beleaguered democrat, Yushchenko, and an authoritarian Soviet nostalgic, the present Prime Minister, Viktor Yanukovych. All facts which contradict this morality tale are suppressed.
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There is, however, one thing which separates the two main candidates, and which explains the West's determination to shoo in Yushchenko: Nato. Yanukovych has said he is against Ukraine joining; Yushchenko is in favour. The West wants Ukraine in Nato to weaken Russia geopolitically and to have a new big client state for expensive Western weaponry, whose manufacturers fund so much of the US political process.
Yanukovych has also promised to promote Russian back to the status of second state language. Since most Ukrainian citizens speak Russian, since Kiev is the historic birthplace of Christian Russia, and since the current legislation forces tens of millions of Russians to Ukrainianise their names, this is hardly unreasonable. The continued artificial imposition of Ukrainian as the state language - started under the Soviets and intensified after the fall of communism - will be a further factor in ripping Ukraine's Russophone citizens away from Russia proper. That is why the West wants it.
http://www.zmag.org/content/showarticle.cfm?SectionID=74&ItemID=6746