Entrepreneurs are known for their innovation and creative spirit, right? Perhaps you have a great business idea and just need money to launch a new business. If so, Microsoft wants you to take their challenge: Submit your great business idea to their IdeaWins contest. OK, it’s a promotion. They want you to download their free Accounting Express software. But it’s also an opportunity to win $100,000 to start your business if you submit the best idea. There isn’t much time to wait — the deadline for entries is January 31, 2007.