A short description how to add Vector Nodes in PSP X.

Use these settings.

When you have made the shape, go to Pen Tool, click on it.

Make the settings like this.

Keep Ctrl down while you point at the line of the shape. When you see "Add", click on the line
and you'll get a node. Add as many nodes as you need. Keep Ctrl in all the time while you add nodes.

Relese the Ctrl button and start dragging and pushing the nodes to the shape you want. When you are done go to Selections, Select None.

That's all. Hope it was to some help.