Sql Gives 78 Wich I Don't Like

Hi,

I've the sql code below wich give interesttarget 78 as a result wch I shouldn't. I think it has something to do with the'(' and  ')' .

SELECT Top 5 *

  FROM TestnetCampaign a, TestnetAds b

WHERE a.campaignid = b.campaignid

     AND b.sizeid = 21

     AND (

                 a.interesttarget LIKE '10,%'

           OR a.interesttarget LIKE '%,10,%'

           OR a.interesttarget LIKE '%,10'

             )

    AND (

                 a.interesttarget NOT LIKE '78,%'

           OR a.interesttarget NOT LIKE '%,78,%'

           OR a.interesttarget NOT LIKE '%,78'

            )

ORDER BY a.ecpc DESC

Any suggestions?

Thanks!

Roel