La imagen del azul no carga porque pusiste: "images/Blue.png", pero en el rojo usas: "Teams/Red.png".
Y el otro problema es que en guiGetSize te olvidaste del segundo argumento.
botred = guiCreateStaticImage(0.2013,0.2517,0.2475,0.4467,"Teams/Red.png",true)
botblue = guiCreateStaticImage(0.5575,0.225,0.2688,0.4917,"Teams/Blue.png",true)
function bigImage ( )
if ( source == botblue ) then
local gxb, gyb = guiGetSize ( source, true )
guiSetSize ( source, ( gxb + 0.075 ), ( gyb + 0.075 ), true )
playSound ( "Sounds/button.mp3" )
elseif ( source == botred ) then
local gxr,gyr = guiGetSize ( source, true )
guiSetSize ( source, ( gxr + 0.075 ), ( gyr + 0.075 ), true )
playSound ( "Sounds/button.mp3" )
end
end
addEventHandler ( "onClientMouseEnter", root, bigImage )
function smallImage ( )
if ( source == botblue ) then
local x, y = guiGetSize ( source, true )
guiSetSize ( source, ( x - 0.075 ), ( y - 0.075 ), true )
elseif ( source == botred ) then
local x, y = guiGetSize ( source, true )
guiSetSize ( source, ( x - 0.075 ), ( y - 0.075 ), true )
end
end
addEventHandler ( "onClientMouseLeave", root, smallImage )