Does anybody know who is playing the guitar theme when carrie is in Mexico on the beach and throws the phone? Please help me:(

I don't know if this is much help but you can check here: Sex and the City Soundtrack, Sex and the City Lyrics >>

Otherwise you can rent the movie, fast forward to the end credits and check the names of songs at the approximate time it played in the movie(beginning, middle or end).

The song is called "It's Me & You Suite". I was searching a long time 2 find this song as well, and I finally found it on YouTube, under "Sex And The City (2008) Score". The guitar part doesn't start until 2:03, which is why I couldn't recognize it when listening 2 samples of the movie score. Anyway, enjoy!