I need either scrypt guiminer that can work on my system or how to configure any other miner.
Thank you all in advance.
The 7950 is a great card, have one myself. I don't understand how someone can say it's not worth mining with when all the big farms use them!! So you are just one user instead of a big farm, whatever.
What you will need to do though is learn how to use all the other algorithms. Forget scrypt, forget x11, but DO look for x13, x15, nist5, and all the others. Take a look at the coins being mined on Suprnova right now and you will see lots of alternative algos.
http://www.suprnova.cc/
You are going to have to learn to use a new miner. It is an all-in-one in that it will do all the algos, but you WILL have to learn how to use it. It will take some reading, some time, and asking questions.
https://bitcointalksearch.org/topic/ann-sgminer-v5-optimized-x11x13neoscryptlyra2reetc-kernel-switch-miner-632503
Come to think of it, the easiest place to get started would be NiceHash. They have the latest software versions updated frequently.
https://www.nicehash.com/software/#sgminer
Download sgminer, and follow the "getting started" links there. That's all I can do for you now but feel free to message me once you've done what you can there, ok?