Problems with Screen Share with Back to My Mac

Hi everyone, I'm at a loss right now... I had Screen sharing previously working with my fathers Macbook air (using my apple ID) so i could help him with troubleshooting from time to time. I just recently did a clean reinstall of Mountain Lion on my iMac. I am in the process of setting everything up again but it doesn't seem to be working. I have done what the directions call for but it's still not working. Not sure if it has to do with my clean install and having to redo something on my fathers computer too. another strange problem is that in the sharing section of my Macs system prefs, under screen sharing I am unable to remove any users from the Allow Access for section. the button does nothing at all. can someone do a step by step on how to make that connection to my fathers computer. and yes Back to my mac is turned on on both computers. thanks
ps. I just noticed that i have a couple of Unknown users under my
Allow Access for section, and i can't delete them either.

I see that. The problem is that the log in choice only lets me share the screen of my admin account. I want to share the screen of a standard account which is where I do all my work. So I connect to the standard account and then when I go to share the screen I get the "share screen request"
I just tried to log out of the admin account and into the standard remotely and that worked. Strange way to do it but as long as it works I'm fine with it.
Thanks for the response, it did solve my question because it helped me figure out how to do it.

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Hi,
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Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
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 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
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"Limit the Logs to the Bits above Binary Images."  No, Seriously

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Wish List stuff can be entered here http://www.apple.com/feedback/ichat.html
It will be read.
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I see that. The problem is that the log in choice only lets me share the screen of my admin account. I want to share the screen of a standard account which is where I do all my work. So I connect to the standard account and then when I go to share the screen I get the "share screen request"
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9:07 pm Tuesday; February 24, 2015
 iMac 2.5Ghz i5 2011 (Mavericks 10.9)
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Screen Sharing using Back to my Mac

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Problems with Screen Share with Back to My Mac

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