Vlookup over multiple sheets

Wow!! I've been all over various threads and I've come to the conclusion that I'm too dense to figure out how to utilize the solutions provided.

I don't know anthing about code - and I'm an excel rookie, with that in mind... On the attached master sheet, in column G, H and I; I'd like to vlookup in A2 the serial number on each of the 5 tabs and return the appropriate dates in the appropriate columns.

Can anyone help me with this. It seems like it should be fairly easy but I've tried =if(isna(vlookup..... am I on the right track?

Any answer is appreciated and further appreciated if answers are written in rookie language. THANKS