Where did you find that particular progression?
I have just looked an half a dozen places and all put it a tone higher using A, Bbdim7, Bm7 and E.
A → A power chord
Bm → B power chord
E → E power chord
Leaving just the tricky Bbdim7
You could play this as a Bb power chord and see if it works for you.
Or, because dim7 chords can be substituted with a dominant 7. In this case Bbdim7 can be replaced with Gb7. And Gb7 can be reduced to a power chord.
So you have two choices.
1]
A power chord → Bb power chord → B power chord → E power chord
2]
A power chord → Gb power chord → B power chord → E power chord
I got it off guitar tabs. After reading your post I went back and had a re-look. Sure enough there at the top of the page under tuning “standard” it has “Capo 2nd fret”.
Big thanks for the then tips on the chord conversion. I’m early days in theory. I’ll start tinkering and let you know how I get on.