As stated earlier, different reps give you different instructions. I too have received money though I haven't filed an IB1. That was before I was ever instructed to do so. Since, I have heard both when filing a new claim or opening an existing one.
"All it takes is following a few simple rules".... aka... KISS, 'keep it simple stupid',
do what you suppose to do, don't make it harder than it has to be. Listen to those trying to help you and get your money or keep asking questions and sitting in wonder. Either way.... we're out fishing and hunting while getting paid.
As for filing on line, no way, unless your situation is as Troy stated.
Understand the difference, filing a new claim can't be done, re-opening can't either, claiming weekly bennies of course can. Re-opening online flags the dept. to the date that you first claim, then you'll be prompted to call in, they'll then tell you to contact your home state for the IB1.
Be sure you get online the first day following your layoff date. If you wait, you'll have to sweet talk the rep into back dating your claim.