Got all the stuff I wanted working:
Not sure I like the button styles though, going to see about changing them possibly.
Also I'm going to add some configuration settings for the Custom Achievements button to enable/disable it, and set the file path.
Custom achievements plugin if you weren't aware of it:
http://forums.alliedmods.net/showthread.php?t=109397
Gonna take a break, then finish this up and post it
~edit:
If you want to see the page, take a look at the demo link on the first page
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