  We determine the Verma multiplicities and the characters of projective
modules for atypical blocks in the BGG Category O for the general linear Lie
superalgebras $\frak{gl}(2|2)$ and $\frak{gl}(3|1)$. We then explicitly
determine the composition factor multiplcities of Verma modules in the
atypicality 2 block of $\frak{gl}(2|2)$.
