The only time you should see those error messages is if you are trying to register for the forum. You should not use the register function, as you are already registered.
To request a transport:
go to www.pilotsnpaws.org/forum
Click on the words "Ride Board: Animals Needing Transport"
from there, click on the button labelled "New Topic"
Type in the subject, beginning and ending zipcodes, and the description.
Click on the 'submit' button.