To expand on what Patrick posted, during character creation, you get one Edge free and must take a Flaw to offset any others you take (pre-Advancement, of course). You can take a maximum of two flaws (one per development stage). Thus, you can start with amaximum of three edges from your development packages.
Also as stated, this ignores any bonus edges or flaws from your species. Note that, if you get a flaw from your species, this does NOT entitle you to an additional edge.
Hope I didn't muddy the waters worse...
Former Decipher RPG Net Rep
"Doug, at the keyboard, his fingers bleeding" (with thanks to Moriarti)
In D&D3E, Abyssal is not the language of evil vacuum cleaners.