greetings

i am stuck, i have two lists, both with the same information, but in
differnt places what i need is this

If Cell A1. value = "Anything on sheet (2) Column A" then do nothing

else if Cell A1. Value < "Anything on sheet (2) Column A" then

highlight A1, I know not too tough, but here is where i get stuck..

After searching for Cell A1.value i need to search the rest of column A's
cells against Sheet (2) Column A

any help would be great.