I don't know how that snapshot of code you posted relates to your question. Your code just searches for an 8 and return a villain that has it. Where does your logic fit into that bit of code you posted?
To keep someone from entering a number greater than 8, use the date entry limits of the numeric control properties to prevent a number greater than 8 being entered.
To count the number of 8's, I would just use a For loop with autoindexing to step through the array. If a number is equal to 8, than add one to a counter your store in a shift register. When the loop is done, use a case structure where 0 gives your last message. 1 does not give a message, and 2 or default gives the message about not putting in more than one 8.
