Riax?

I'm looking at Riax Seca tires, but I'm not sure if they fit. They have 17x7 models, but I don't know if the offset matches my car. Any ideas? Also, any input about the rims would help and what kind of lug nuts/tuner lug nuts would I need for these rims?

Bud... over a year old... im sure hes solved this mystery....please check thread dates before posting so you dont revive old threads.