Yes, I've seen the Paul one before, but I'd only ever seen the short George version. I really got a chuckle out of some of Al's questions-- and George is always so deadpan honest, it makes a great laugh.
Blackmath, I think I can answer your questions:
First one:
1:05 He did a parody of what? -- "He's So Fine" - Al is referring to the plagiarism suit against George where he "subconsciously plagiarized" "He's So Fine" to get the tune for "My Sweet Lord". Absolutely wicked question. Al, you would be so dead if you asked this in person!
1:30 Dead what? - "Dead beaver", an American rodent
2:23 What with his feet? He ignores them? - "Grovel" (worship) at his feet -- yes, he ignores them.