The salery issue.
Some damned good advise seen here on how to deal with this delicate 'yet important' issue. It's a shame they havent come clean with a figure themselves, but I expect they are like you and me, a little afraid of pricing themselves out of the market.
All responces here are good and you would be well advised to read them all again very carefuly. But I would add a couple of things, and this has stood me in good stead all through my working life.
Keep as many options as possible open to you. You have done a good job in selling yourself so far and you need to close the deal now. It could be that the company are looking towards a strong character to nail the deal. It could also be the opposite, so no help here.
But the one thing that I have always stood by is a no bullying policy. This cuts both ways so be careful. What I mean is that I fear no one, and have the utmost respect for their position.
It's your interview and your future, You are entitled to be positive and strong with your responces. Use body language to tell them you mean business, and offer to put yourself up for reviewing based on results in the appropriate time frame.
If you make it clear that you understand that they also have a difficult decision to make and show them empathy, this could demonstrate your understanding of them as a company and the market place. Providing you are as good as you think and say you are, you will be judged on your results, and the pay issue will melt into the distance given time.
Be mindfull that there may also be someone already in place that is gearing up to take your credit and make your efforts seem like light work.
So prepare yourself for this interview and demonstrate your positive side by asking them questions on what they are expecting from an employee. But only do this after the salery issue, and towards the end of the interview.
Good luck, be positive and completely professional, but don't be cockey.