Tetronious

I just got my Greddy Kit 18G for my 2000 SI hooked up this weekend, and everything seems to be running fine. Ive reset the ecu twice and arent really flashing any codes except for a code 1 which is my o2 sensor. It makes long flashes continously, I didnt know if it takes awhile for the ecu to get adapted to the new system or what? Im running a the Greddy Blue Box. Is it ok to drive the car like this? My a/f gauge seems to be running normal when Im driving it. When it sits at idle it doesnt seem to bounce back and forth like it did before I started boosting. It will stay over in lean for awhile but it does find its way back over to rich, I figured it probably isnt giving me an accurate reading because of my o2 sensor fault. What should I do? Reset the computer again or try a different o2 sensor? My car doesnt seem to be running sluggish, but I would like to take care of this problem and make sure there isnt anything faulty going on.. Also as well my SRS light is on any one know of a way to get rid of that.. Ive reset the computer but that hasnt helped.. Any suggestions would be appreciated.

Thanks