  Transverse momentum distribution of gauge bosons $W^{\pm}$ and $Z^0$ is
calculated using unintegrated parton distributions obtained by solving leading
order CCFM equation(s) in the impact parameter space. For illustration we
compare the results of the fixed-order collinear, soft-gluon resummation and
CCFM approaches. A parameter of a nonperturbative form factor is adjusted to
the D0 data. In contrast to the collinear approach, the leading order
calculation based on the unintegrated CCFM parton distributions generates
transverse momentum distributions of gauge bosons, which are almost consistent
with experimental data provided the parameter of the nonperturbative form
factor is appropriately adjusted. The $W^+$-$W^-$ asymmetry is calculated as a
function of the boson rapidity and transverse momentum. Predictions are given
for RHIC and LHC.
