Take out the UTH, you don't need it.
Your hot side temps are a little low...should be more like 95-100. Take the temps on that hammock, too. If it's too hot, she'll never use it.

Try a hamster feeding bowl or cat bowl. They are opaque, ceramic and low sided.

I agree, soaking is a requirement anyway for hydration and that is also usually when they potty. If she hasn't poo'd in the last few days you can give her some baby food or a little olive oil to get things going. As they get older, they poop less. Mine poops about every 5 days. He's older than 2, but we don't know his exact age.

She's only been with you a week though, and that could have something to do with it. They seem to have a fairly long adjustment period. Give her time. Keep bathing her, keep giving her veggies and insects(make sure you are dusting them with calcium and vitamins). She'll poop. I would handle her as little as possible for the first week, maybe two. My beardie is a completely different guy than when we first got him. It probably took him a good month to settle down. He came from a bad situation though.

I would definitely think about building or acquiring a bigger enclosure. 12 in width is really not enough. Comfortable would be a 4x2, 18 or 24 inches tall.

Also, visit www.beardeddragon.org --it's just like this site, but for beardies!

Congrats on your new gal! Beardies are great pets!