I will be fighting in 2 months and i would like to know what you do in the last couple of months to tighten down your traing. How many days a week you train. for cardio and striking

Bzob- what kind of fight is it? boxing, kickboxing?
I'd probably devote about an hour 6 days a week to cardio, probably first thing in the morning. Then training striking 3 or 4 times a week for 2 hours or so. I would not want to get winded in my fight, I'm sure you know how to punch and kick if your gonna fight, make sure your cardio is up to par.

A lot will depend on your current condition and training. 2 months is a good elngth of time to train for a fight, but hopefully your base will be solid enough coming into it that you can have a taper at the end of the period.

I know cardio is going to be my down fall. but i jump rope 12 3 min ronds wil a 45 sec break. and do 30 of jogging/walking and 30 mins on the "eliptical machine" My concern is how i should lift weights now. Isolate part like i have for years or start circut training 4 times a week

If you have been lifting for a few years, a couple of months of ciruit training will be a good chance for your joints get some rest after the pounding of lifting gives them, fuck I know mine need it! A good ciruit will be extremely beneficial to your whole endurance side of things, both cardio and muscular so yeah, for 2 months, go for it, it won't be a bad thing IMO