Short version. You want the "rolexs2h2014" short code to pull the data. However, I am not sure if Expedition will pull from a static set, or if it needs a change to calculate the movement.

If you need to pull the data progressively, you can use the tools below to pull the final position report, and modify it to reflect a specific time update. If you need details, reach out and I can walk through in a bit more detail.

Long version:
Here is the list of links for Sydney to Hobart 2014:
http://yb.tl/links/rolexs2h2014

From there, the following are the Expedition pieces:
Position Report: http://yb.tl/rolexs2h2014-expedition.txt
Boat IDs: http://yb.tl/rolexs2h2014-boatids.txt

If you have a use for the XML data (such as pulling the SOG and COG of a boat), you can access it through the following:
http://live.adventuretracking.com/xml/rolexs2h2014

That same data is also available through the "Simple" view, but that may be more data intensive than what you want, depending on the need:
http://yb.tl/Simple/rolexs2h2014

You can also use the XML feed to pull multiple updates in reverse, by modifying the URL. The documentation for the API is here:
YB Tracking API Notes

I spent a good deal of time playing with the YB data feed during the wind up for Annapolis-Newport and Marblehead-Halifax. If you have some questions around it, don't hesitate to reach out.

Also, see

http://yb.tl/links/rolexs2h2015