You don't need Crystal Server to do this. You can deliver reports as is through the web. If your website is written in ASP.NET, there is a Crystal Viewer component that comes with Visual Studio that you can use to show your reports (yes, it will work with v8 reports so you don't need to upgrade all of them!) If your website is written in Java, there is a Crystal Veiwer component that is available online.
I'm not sure what the licensing implications are for this, but I know it's possible because we did this when I was at a former employer.
-Dell