I have a few questions (with pictures)

[محروم.كوم]

הצג סקריפט אנגלי
I have a few questions, answer me please.
1. With I buy a vbulletin 4.x,
How I could make it a variant 3.8x?
2. How do I change the title of the site?
Here is a picture of what I mean:

Third. I have a website with (without license), how could I put a license? (After I bought the license) and the site license can be placed without a permit and the site and everything in it not deleted?


4. Is Maude Cs costs money?
5. With Maude site has CS and I have similar Cs Maude, Maude has a site like mine Cs could sue me?
My picture:

Image of the site with Cs similar to what I put:
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