Thanks Kim, I'm guessing you mean Table Rate Shipping? I'm not sure but I set mine up to be based on price, and used these settings:
In case anyone in the future would like to do this I found it under Admin > Modules > Shipping Modules > Table Rate. If you are going to do price based shipping like I did then in the textarea enter your settings like this. The line starts with your cap shipping price example ($0.00 to $24.99) then your cap would be $24.99, add a colon : after your first cap price then add how much shipping will be for this level, this a comma so your first shipping price level would look like this "24.99:4.99," with out the quotes.
I hope you found this useful.