In what should come as a shock to almost no one, the detailed negotiations to complete the Microsoft (MSFT) and Yahoo (YHOO) search and online advertising final agreement is more complicated that its authors anticipated and is taking longer than expected to complete.

Relax, folks–it’ll get done.

But here’s a more important thing that should wrap up sooner than later: Yahoo CEO Carol Bartz’s seemingly never-ending jibes about former CEO and Co-founder Jerry Yang’s tenure.

First, let’s deal with the issues around the agreement, which is a monster document.

That’s why MicroHoo has missed the deadline yesterday to execute its definitive agreement on the transaction struck in July.

In a filing with the U.S. Securities and Exchange Commission, Yahoo said:

“The Letter Agreement specified that the parties would execute definitive agreements by October 27, 2009, but given the complex nature of the transaction, there remain some details to be finalized.”

Added Microsoft in a long statement:

“Microsoft and Yahoo! are committed to this agreement and believe this is a highly co