Congratulations! We're here to help.
If you want to work up to jogging and you're not in shape now, just remember to start slow. Set out to walk at least once a day. (rain or shine) Twice a day would be preferable. Be mindful of your speed when you are out there. Don't just stroll along really push yourself to walk as fast as you can.
I would recommend walking in the morning for 30 minutes and again in the evening for 30 minutes. If you don't have the time try for 45-60 minutes all at once.
Once you feel confident that you are able to walk 45 minutes continually at a fast pace, start adding in little spurts of jogging. Set a point and make yourself jog to, like the end of the block, or the next light post. Whatever you can do and still maintain your fast walking pace after. Add in one more each time you go out, or jog a little farther. Just remember not to jog for a bit and then slow down slower than you were walking before you started jogging. Make sense? Work your way up to jogging more than walking, this will take a while but that's ok, you're getting in good shape in the mean time.
Good luck. It might be a good idea to keep track in this thread (or start a new one) of your times and distances for motivation. An example would be:
Feb 9th morning: Walked 25 minutes brisk pace.
Feb 9th evening: Walked 30 minutes brisk pace.
....etc.
March 12th Morning: Walked 30 minutes brisk pace w/4 30-second bursts of jogging.
March 12th Evening: Walked 40 minutes brisk pace w/4 30-second bursts of jogging.
and on and on.....