installing QT Embedded SDK => 4.7 for 32bit BBBlack

Fairly speaking ,I'm not able to understand where I should start clearly, I have the already built QT kit for angstrom linux that is working all fine on my BeagleBoneBlack but its version 4.6.3 which I need to update to 4.7 atleast! previously I got the kit from this link >> http://web.archive.org/web/201310031...org/toolchains which has the crosscompiling SDK tools which are working fine! and the next folder has the needed QTembeddedSDK built for 4.7.1. QT version but the problem is these links aren't working and I'm searching for the same files elsewhere.

So I want headsup how to work it out?