  We compute explicit solutions $\Lambda^\pm_m$ of the Painleve VI (PVI)
differential equation from equivariant instanton bundles $E_m$ corresponding to
Yang-Mills instantons with "quadrupole symmetry." This is based on a
generalization of Hitchin's logarithmic connection to vector bundles with an
$SL_2({\mathbb C})$ action. We then identify explicit Okamoto transformation
which play the role of "creation operators" for construction $\Lambda^\pm_m$
from the "ground state" $\Lambda^\pm_0$, suggesting that the equivariant
instanton bundles $E_m$ might similarly be related to the trivial "ground
state" $E_0$.
