They're not the same mate. You can't play the Slane harmonics on a guitar in standard tuning. Album is EADGBE, Slane is GDBFCG.
If I have a standard tuning on my guitar, I can play along with the album version. I would then need a capo on the second fret to play along with ZooTV or PopMart, and a capo on the third fret to play along with any version from Elevation on. All live versions have a capo on the third fret, but in the 90s his guitar was tuned half a step down. Since Elevation the guitar has been standard tuning.