First register
http://likesasap.com/register.php?ref=130497

Then Install FireFox and his plugin iMacros for FireFox

so you need to create a new macros and add this code
_________________________________________________________________
VERSION BUILD=8601111 RECORDER=FX
TAB T=1
URL GOTO=http://likesasap.com/fbstdlikes.php?refresh=Refresh#
TAG POS=1 TYPE=INPUT:SUBMIT ATTR=*
TAB T=2
TAG POS=1 TYPE=INPUT:SUBMIT ATTR=VALUE:Me<SP>gusta
WAIT SECONDS=3
TAB CLOSE
TAB T=1
TAG POS=2 TYPE=INPUT:SUBMIT ATTR=*
WAIT SECONDS=5
------------------------------------------------------------------

And Vualla your bot is runnig to likes automaticly.