It has just come to my attention that MetaTrader 4 handles and plots fibs a bit differently than other popular platforms such as eSignal, VT Trader, TradeStation, etc.
The attached document will show you how to customize fibonacci settings within MT4 so that both extentions and retracements get plotted at the same time (and as an added bonus, the retracements will also not be labeled backwards as they usually are).
If for some reason the attachment doesn’t work, you can also download the file from Fibonacci Adjustment for MetaTrader 4
I hope this helps clear up some of the confusion!
Good trading,
-=Black Knight