Tax help?

[la79al]

I used TurboTax to file our taxes yesterday and pretty quickly after filing, discovered a problem with the state return. I need to do an amended return. Went into Turbo Tax to do that and I think I can figure that out. I don't need to amend federal, just state so hopefully doing just one isn't too tricky. But I did a phone call with a 'specialist' who told me that for state, I should pay the amount due on the original filing and let that all be completed before I even do the amended return (that has to be mailed in). I'm not sure that this makes sense. And the PA dept of revenue is closed, I will hopefully get an email response in 5-8 business days. Anyone know whether I should do the amended now with the total amount or pay on the initial filing first and then amend to show that I paid that already? I hate taxes.