edge flow
 

Where can i download the edge flow tool?

The what???

Do you mean Edge loop tool??? Like the M.J. Poly Tools???

What version of Maya are you using???

If your using version 8 or higher, the Insert edge loop tool is built in.

Maybe I'm thinking of the wrong thing, but of never heard of the "Edge Flow Tool".

Yeah, maya 8

Finding edge loop utility
 

First grab an edge on you surface and then hit ctrl+Right mouse click and look for Edge Ring Utilities. This is how it is found with default maya settings. There are a number of handy other tools in this menu set. Try them out to view what each one does.
If you trying to grab a row of edges along the face path then you hit ctrl+Right Mouse click. Drag the mouse over to Edge Ring Utilities which takes you to a sub menu and click on Select Edge Ring Tool. Double click on the edge which you want to select and your edges along a face path will be selected. Hope this helps. Playing around with these tools will help you work flow tremendously.