We are using OPENCATS on Amazon EC2 on Linux. We hosted it for our Staffing team and it works wonderful. This will give access to your OPENCATS via Web. There is no limit on the users and very less charges for an on-demand Linux instance (Approx \$0.085 per hour, the price goes down for reserved instances). No need to worry about running scripts and access rights. You can have your own instance with database in your instance and you can also use this instance for other applications, if you want to.
We can help any other company who want to host OPENCATS on Amazon EC2.
Please visit our website <http://www.exinent.com> or send an email to firstname.lastname@example.org