It's hard to say without hearing or seeing you play it. Can you record a small audio/video clip?

Keep in mind that Eddie has his guitar tuned down 1/2 step, so if you learned the solo from a tab and are playing along with the song, it will sound terribly wrong :) Two ways to fix this: tune your guitar down 1/2 step or shift all the positions down 1 fret on the guitar.

If you're not referring to the tuning, are you referring to the sound? Tapping stuff like that requires great finger strength and the only way to develop that is to play the licks over and over, over and over, over and over again... start slowly so you can really hear what you're doing wrong.

Well, don't know if I answered your question, but I hope I did!