  Recent OGLE (Optical Gravitational Lensing Experiment) and GLITP
(Gravitational Lens International Time Project) monitoring data for QSO
2237+0305 (Huchra et al.) have been analyzed through a newly optimized N-body
microlensing analysis method, the Local HAE Caustic Modeling (LOHCAM). This
method simultaneously solves for the size of the source and N-body HAE (High
Amplification Events) caustic shapes in the source plane and determines those
sizes only as a function of the projected transverse velocity of the source. By
applying this method to the light curves of the A & C lensed components in the
Einstein Cross, these data are accurately reconstructed for the first time.
  From these modeling studies, we report several interesting results: the
minimum number of microlenses required for possible caustic models, the
possible evidence of an accretion disk with a central hole at the heart of the
quasar, the size of the UV-continuum source, the masses of the microlenses
being directly responsible for the observed HAEs, the estimated mass range of a
super massive black hole (SMBH) in QSO 2237+0305 and finally some clues for the
direction of the source motion in the sky.
