If you want a nice user friendly gui text editor just use kwrite (either run that as a command or look in the menus) - its installed by default just like the programs edong listed.
If you're having troubling building something from source you might want to post the error message you get here and we'll see if we can help.
However as a first choice for installing software you should use the packaging system. Goto http://easyurpmi.zarb.org
and follow the instructions to setup access to the software repositories then goto menu->System->Configuration->Packaging->Install Software, type the name of what you want to install and install it. This avoids all the hassle and difficulty of trying to build things from source.