Thanks!
IW is incredibly busy today so just in case she doesn't get to this go ahead and start with 2.5. Some people handle this much better than others. If you feel your heartrate racing then stay at that dose. If you don't, go up the next day and each day until you feel that heart pumping a bit (at a level that is tolerable to you). I started at 5 and slowly worked up to 15 over the course of a week. IW did about the same.
Also remember that the presence of insulin kills the effects. It's best to take it first thing in the morning on an empty stomach before cardio. If this isn't possible, take it 3 hours after your last meal.
Not sure if IW instructed you on the yohimbine cardio protocol (from lyle mcdonald). Start with 10 minutes of intervals to get stored fat released from those trouble spots, then rest for 5 minutes to let it enter your bloodstream, then use that fat up doing 20 to 30 minutes of steady state cardio.
IW does the intervals on a cycle (i'm liking it now too). Go as hard as you can for 1 minute then go slow/medium for 1 minute. Repeat 5 times. For steady state walking the treadmill on an incline is fine. Just keep your heartrate around 130.
IW will probably check in sometime tomorrow or friday and fix any mistakes i've made
Good luck!