Hmm, well then perhaps I'm wrong. I figured if it didn't let you assign stars to a force power, then you lacked the rank to get it.
But how would they prevent you from going up in rank if you needed those stars?
Unless you cheated and skipped a level somewhere along the line, you should be able to assign stars (and if the strategy guide says you should use speed, they assume you have it already).
Before you read any further, these are just my suggestions, I'd make a backup of your saved game just in case:
Try this (save your game first just in case) and then hit the "T" key and type "deeznuts" without quotes. This will increase your rank. But if you don't have stars already assigned, you'd have to cheat big time to get speed with stars. Hmm..
You could also try rocket jumping across.
I dunno.. Maybe restart the last level and see if you missed anything or if it was just a fluke. And try again to reassign those stars. Keep in mind that you can only assign stars to force BETWEEN levels (not during). Of course if you absolutely have to have speed to beat that level you should have it already.
[This message has been edited by Kurgan (edited February 04, 2001).]