Normally, before placing an order the free trial software has already been downloaded and installed from the web site. If that is the case, an installation CD would not be needed. If, however, it is not possible to download and install the software, then you can simply order 1 or 2 installation disks which can be shared among all users. The company mailing address and phone/fax numbers have been provided to you on the invoice which was generated when you completed the online order form. Thanks.