Key powers agree deal to end Israel-Hizbollah war - Yahoo! News:
"An Israeli political source said Prime Minister Ehud Olmert was reviewing the draft resolution. Earlier in the day, Israel ordered an expansion of its ground offensive and said it would press ahead with the campaign if it was unhappy with any deal."

So Israel will just violate another UN resolution if they don't get what they want. And don't forget that the US could force a ceasefire at any time if they so desired. But then, since we are in a permanent war with "Islamo-fascists" what's the rush?