These are the only functional links from the old site out of the 3 from the Old Current Conditions Page and the 9 from the River Stages Page.
NOAA River Watch
There are the same links you will find by clicking on the NOAA River Watch button to the left. These buttons just take you straight to the river you are looking for.
The associated river's page have 6am Stages along with the short (4 days) and long term (4 week) forecast for stages.
Mississippi River Real Time River Guages