As some know, i am experiencing my first flowers after rooting a handful of 'sticks' earlier this spring. Does every flower produce seeds? I'd like to try and collect the seeds and try growing but dont know what to look for , and not sure how long after the flower expires until i can expect to harvest the seeds. Once (if) i do get any, will they keep or do i need to plant right away?

A seedpod will look like this:
You may or may not get a pod, you most likely lack pollinators in your area but you never know. Definitely not on every flower.
The seedpod will hang on for approxiumately 9 months before it matures.
Seeds will keep several years in dry cool conditions.
Growing plumeria from seed requires a LOT of patience! A seedling is unlikely to bloom for at least 3 years although it's possible to get blooms sooner.

Hetty thanks...good to know.

I hope you get seed pods this year, Tim. You can't miss it. They start put small them get pretty big 6-12" long. Takes about 9 mos to mature. You will get tons of seeds ready to plant.

Speaking of seeds...here's some seedlings from this year, now someone told me seedlings have to be kept awake during winter for the first year? Is this correct? Also would. A fish tank work as a green house for them along with the light??

It is recommended, although I have never done so with my seedlings.
I think a fish tank would be fine.

Speaking of seeds, I have my first pods forming currently. How warm/awake do I need to keep my tree this winter? Is it okay to go dormant?

Your seedpods will happily hang on through dormancy.