  Representations of the superalgebra $osp(2|2)$ and current superalgebra
$osp(2|2)^{(1)}_k$ in the standard basis are investigated. All
finite-dimensional typical and atypical representations of $osp(2|2)$ are
constructed by the vector coherent state method. Primary fields of the
non-unitary conformal field theory associated with $osp(2|2)^{(1)}_k$ in the
standard basis are constructed for arbitrary level $k$.
