Whoops got that backwards. It should be:

lntemp = lncolor
lnmask = 255
<b>lnred</b> = BITAND(lntemp, lnmask)
lntemp = BITRSHIFT(lntemp, 8)
lngreen = BITAND(lntemp, lnmask)
lntemp = BITRSHIFT(lntemp, 8)
<b>lnblue</b> = BITAND(lntemp, lnmask)

Same goes for my orignal statement: red's the least significant 8 bits, blue's the most. Doh!