You have download the web SERVICES development package. This is a toolset to be used as an extra package in conjunction with the
java platform to create XML applications(manage
SOAP messages, sbXML registries, etc..). This package do not include
servlets or
jsp, just include the JSP Standard Tag Library.
If what you are trying to do is learn/use jsp and servlets you have to download the
J2EE SDK from the j2ee
download page.
HTH