Customize>Info>URL Delete that and write the URL you want.
yes
You have to email the snog staff (contact@snog.com) and ask them to change it for you.
Log in, then click on your blog title. then "settings". you will see a box under portrait to type your new URL. ~ hope it helps.. Ask me here : http://unlimitedblog.tumblr.com
No But you can create a new account and hopefully you can get your video's back on there.
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