Mix up the sauces first and set aside. For the sweet and sour sauce, bring the sauce ingredients to a boil in a saucepan, then set aside to cool. You can chill it in the refrigerator if you want a cold sauce (or want to do the sauces ahead). For the peanut sauce, just blend all the ingredients.
For the chicken
Cut the chicken into thin strips while you heat the peanut oil in a wok or large skillet.
Add ginger and garlic and stir-fry a minute or so, stirring constantly.
Add the chicken strips and continue to stir-fry, stirring, until the chicken is done, about 5-8 minutes.
Add the soy sauce, sesame oil and sesame seeds and bring to a boil. Remove from the heat.
Assemble the wraps and serve or offer each ingredient up so everyone can make their own wraps.