Saddles are 100% individual preference. You'll have to try some out and figure out what you like. Just saying it's "painful" is not enough to go on. There may not really be anything wrong with the saddle at all, and maybe your butt is just not used to it.

As for handlebars, again, this is largely personal preference, but you have to figure out what you don't like about the current one, in order to make some improvement. I assume you have some sort of riser bar, ala mountain bike style? Perhaps something that has a bit more bend backward (towards you), and/or a bit more rise to it will help. Again though, just saying that "It's uncomfortable" is too vague...