We are going to need to know more - What happens when you execute the startup.bat batch file? (Incidently DO NOT click on the batch file, open a MSDOS Prompt and execute it from the command line in the /Tomcat/bin directory. That way you can see the errors.)
Have you read the documentation that accompanies the Tomcat distribution? Which version of Tomcat is this?
The most common problem with Tomcat on Win98 is running out of environment space. Tomcat sets some long environment variables so you need to increase the memory Win98 uses in MSDOS Prompt windows for environment space.
From a MSDOS prompt window, right-click on the upper left corner to get the properties dialog. On the Memory tab, set Initial Environment to 4096.
Bill
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