Where can I find info and documentations for the mentioned libraries? I browsed Struts' homepage but couldn't find a place to read or download documentations for these libs. As far as I know, c.tld and fmt.tld are pretty much standard libs, aren't they?
The Struts version in use is 1.2.4, the JSTL are in use as well.
Once this page is displayed, you will see links for each of the taglibs on the left navigation panel.
Regarding the "c" and "fmt" taglibs, the way you have defined them is not the usual way to define them. Since these taglibs are contained within jstl.jar and standard.jar, they are normally declared by their namespace. Example:
If you use these declarations, the TLDs will be found in the jar file. There is no need to extract them or declare them anywhere else. The above works if your Application Server supports J2EE 1.3 (Tomcat 4). If your App server uses J2EE 1.4 (Tomcat 5), use the following declarations: