Beginners [Need Install Script Examples]

Hi there,
I'm new to this NSIS. And I have already used search to find the examples of installation scripts. Also I have looked into NSIS example scrips as well.
But I dont really get it, Perhaps I'm suck.
Anyway I know that you guys are very good at this, Can you guys be kind enough to post your installer script for me to look as my guideline? I just want a simple script which can :
>add my entrie folder with all sundirectories
>Installer options[Which can select which section to be install or all of it.]
>Uninstaller which can delete its own folder[the one in the example doesnt work it just delete uninstall.exe file.]

I'm really need help.
Thank you very much.

NSIS editors such us HM NIS Editor, Venis, EclipseNSIS (for Eclipse platform) already have script wizards. All that you need just run it and follow instructions.

Thanks

Also take a look at the example scripts in the EXAMPLES folder of the NSIS install tree. (${NSISDIR}\examples).

There's also a few examples on the NSIS wiki: