>>PLEASE HOW DO I START USING JSP TO BUILD WEB PAGES ON NETBEANS FROM SCRATCH.I HAVE LOOKED UP ALMOST EVERYWHERE AND IT KEEP CONFUSING ME.(I HAVE netbeans ide 6.1 VERSION).
You need to have installed NetBeans with option for Java Web and EE, if you do not see Web Application option you need to rerun instalation and add this option. Open NetBeans File >> New Project >> Select Java Web and either select Web Application or Web Application with Existing Sources

>>ALL MY CODES HAVE BEEN WRITTEN IN JAVA AND I NEED TO UPLOAD THEM USING WEB PAGES AND NOT JUST NORMAL GRAPGHICAL USER INTERFACE.AND I GUESS JSP'S ARE THE ONLY WEB PAGES THAT USES JAVA CODE ???????I GUESS???? I DONT KNOW......
Not sure what you asking in this part. More explanation need it.

For web development u need netbeans with java EE jdk too so download it from sun's site if u don't have then...open netbeans..go to->file-> new -> project select web application from
dialog box
after u have created the project..it will be displayed in files tab on leftin that project folder u have a folder called web right click on it select new then u get an option to select jsp file ...bingo there u go name the file n the u can use paste ur java code there to deploy the project press F6