Oh dear, Thank you very much for your help.
I was able to install the latest version of Electrum as you can see in the picture below. I followed all the commands you have provided and I just copied and pasted them without even understanding what's happening. I created a thread a few days ago Here is why Bitcointalk is a reliable source!. Once again you guys proved why it is a reliable source. I doubt that if would open the same thread on different platforms, I don't think someone would constantly help and check back the replies that Bitcointalk users do. One last question, I am slowly moving to Linux and I face some difficulties understanding those things. Which section is most appropriate for looking for help?