How to edit ipo path

Sorry im pretty new to blender.How exactly do i edit the ipo path (which is 100 frames) to slow the camera down as it moves along.

Add a Time IPO. Goto the IPO window, select Path from the menu, LMB on Time in the Right-hand column then Ctrl-LMB where you want the new IPO. Tab into Edit mode, select and Edit Point and move it up or down to change the interpolation.

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Still dont know where im going wrong.I opened the ipo window.selected path but cant see time anywhere.i see speed in the right column but no time!!

My bad, Speed is the one.

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Nice one thanks for the help.