The famous Winston/Keith book has 3 versions of this tune in it - one of which is for C6, but it doesn't bear much resemblance to this arrangement.
There's a tricky bit where you have to half pedal on 4 (shown as '4*') as an afterthought while sliding up to get a dominant seventh. If you can't do this then just leave out the 8th string.
At the end, be sure to 'stop' the 5th string before sliding up.
The backing track is courtesy of BIAB.