You can ask about the salary but be careful how you do it. Firstly, make sure that you havn't already been told/given it in an information etc - looks bad if you havn't bothered to read things they have given you. You will probably want to ask when they ask you if you have a questions at the end, try not to make this your only question though, it looks like that is all you are bothered about. But again, don't make your other question something you should now the answer to (like, what does your company do!?) It may also be worth having an idea of what salary you would be looking for in your head, they may ask you what you are wanting. No point in giving them a really low figure and them sticking to that, but don't make it seem like you are just after the money! Look around and see if you can find a range of what the salary for that type of job should be.