I added code tags to your post. Please use them. It makes your post easier to read.
We have a FAQ entry about this error. I'm curious to know why you have two different versions of the struts-taglib JAR file.
Since you have struts-core-1.3.5.jar, I would assume you deleted the wrong Struts taglib JAR file.
The easiest way to fix dependency issues is to use the WEB-INF/lib directory out of one of the example applications in the Struts distribution. Trying to track one down by deleting and adding JAR files one at a time is an exercise in futility.