Upgrading from:

Graphics`PlotField`

All of the functionality in Graphics`PlotField` has been added to the built-in Mathematica kernel.

Load VectorFieldPlots` to use Graphics`PlotField` functionality:

Version 5.2 << Graphics`PlotField`;

VectorFieldPlot contains the functionality of PlotVectorField:

Version 5.2 PlotVectorField[{x, y}, {x, 0, 1}, {y, 0, 1}]

ListVectorFieldPlot contains the functionality of ListPlotVectorField:

Version 5.2 ListPlotVectorField[Table[{x, y}, {x, 0, 1, .2}, {y, 0, 1, 0.2}]]

GradientFieldPlot contains the functionality of PlotGradientField:

Version 5.2 PlotGradientField[Sin[x] Cos[y], {x, 0, 1}, {y, 0, 1}]

HamiltonianFieldPlot contains the functionality of PlotHamiltonianField:

Version 5.2 PlotHamiltonianField[Sin[x] Cos[y], {x, 0, 2 Pi}, {y, 0, 2 Pi}]

PolyaFieldPlot contains the functionality of PlotPolyaField:

Version 5.2 PlotPolyaField[Sin[x + I*y], {x, 0, 2 Pi}, {y, 0, 2 Pi}]