Ads Manager Search-module

hi ! does anyone know how to modify the adsmanager search module to be in a single line? ..i mean those 2 fields..searh input text, the category selection and the ’’search’’ buton..my site is www.freecityad.com ..also i would like to increase the font without afecting the joomla template ..i allready gave an suffix to the module but i but i don’t know where to search him to modify it..ani’m if anyone can help me please ,i’m just a beginner.thanx