Announcement Box w/ Image Question...

[TEAMBAJAMARINE]

I have chosen to use the ANNOUNCEMENT box for my banners on a per forum basis, as it it a simple route for me, my question is can the spacing on the top and bottom of the banner be changed to lets say, so the area is smaller?

Please have a peek to see what I mean...
http://www.teambajamarine.com/forum/forumdisplay.php?f=38