Finally , I have managed to install RT 5.0 which looks good to me , however I cannot do one thing with it, after default installation I found no way to insert picture in an Article.
I have checked the forum, however I found no soulution for my issue for RT 5.0.
If any of you faced the same issue with same version please help me.
I didn’t confirm that this is still the case with RT 5, but in RT 4 it was possible to add a CustomField letting you add an attachment, then at a separate edit, manually embed that image in the article. Not a great procedure, but it works.