A 100 day free trial is available from the Kingsoft Web site, so you'll have plenty of time to see if this program meets the needs of your home based business. At the end of your trial period, you can buy the program for $69.95. This license is only good for one computer, however. You'll need to contact the company directly if your business requires multiple licenses.
If you're trying to keep things as bare bones as possible during the start up phase of your entrepreneurial endeavors, keep in mind that the company is working on plans to implement a free release of Kingsoft Office 2007.