  We give an integral representation for solutions of the elliptic quantum
Knizhnik-Zamolodchikov-Bernard difference equations, in the case of sl(2). The
result is based on a geometric construction of highest weight representations
of the elliptic quantum group associated to sl(2). We also obtain Bethe ansatz
eigenfunctions for the corresponding integrable systems of difference
operators, and prove their completeness in some cases.
