SAP UI5 Integration in Eclipse

Hi SAPUI5-experts,

I am new to SAP Fiori and SAP UI5, so wanted to try my hands on this.

Thus i am following one post from SAP Technical (Link : Install SAPUI5 in Eclipse Juno) for this integration.

At Forth Step it says to install SAP NetWeaver Gateway PluginForEclipse_2.5.400.zip file, but i was unable to find the file on internet, furthermore after some googleing i found on this page (Link : SAP Development Tools for Eclipse) that it will work if we add the URL (SAP Development Tools for Eclipse - Kepler Software Repository) in New Soft. Install Eclipse.

But when i tried that i am getting errors. (Plz look 2 screenshots)

I tried diff selections but still it is now installing...

HELP NEEDED BADLY