Hi April, Thanks for the message, and for your business,
You'll be fine with the 2008 Premier edition. A few suggestions - don't try to enter too much data all at once, it's monotonous and if you discover you need to change the way you entered it, you'll have to redo things. Instead, make a few representative entries and then try to make reports. By generating the reports and ensuring you can get all the data out of QB's that you need, you'll know that you're entering the data correctly from the beginning. So try for little short, small iterations with frequent verification (via reports, thinking about what you're doing, and running things by your accountant).
I think you'll do great,