so what are these plugs for?

After taking out my Windshield washer tank due to bad rubber seal, i decided to take pics of some connectors I have no clue what their purpose are

http://i1092.photobucket.com/albums/...107_173847.jpg

http://i1092.photobucket.com/albums/...107_173814.jpg

http://i1092.photobucket.com/albums/...107_173751.jpg

http://i1092.photobucket.com/albums/...107_173736.jpg

pic of the tank out and me cursing findind the seal broken:
http://i1092.photobucket.com/albums/...107_173715.jpg

http://i1092.photobucket.com/albums/...107_173634.jpg

ECS connectors, front O2 sensor connector, EGR temp sensor connector, MAFS connector, fuel pump resistor connector....

I take it you didn't mod the car yourself...?

i paid a workshop to do it, and they did a poor job. I always feel they missed plugging something together..
Im too much of a noob to be doing something like that myself as I always seem to do something wrong, and loosing bolts inside the engine compartment is my specialty.