Make sure you connect your stars right, otherwise you won't be able to submit your constellation. Here's a visual if you need it:

You need to connect stars 1, 2, 3, 4, and 5 together in one line. For star 6, you only need to highlight it- do this with the ADD STAR tool. Just click on the star, and it will be highlighted. Once you've got all six stars, go ahead and submit. Remember, if you do anything other then just highlight star 6, the constellation won't work!
Once you've found your constellation, go ahead and submit it. You'll get the screen you got from the Sleeper Constellation that lets you know you've identified it correctly, and you'll see the following through your telescope:
If you're having trouble finding your Dreamer Constellation, the best place to start looking is around your Sleeper Constellation. Most people have found their two constellations are pretty close to each other.
After you've found your second constellation, you'll want to do a few things. The first thing will be to return to the Hall of Heros, where you're going to want to click on the Psellia the Dreamer's Statue. Go ahead and follow that hidden link like you did for the first constellation (remember, it's right where the top of the picture ends and the white part of the page starts), to see this image:
Pretty, yeah? After you're done gazing at the gems, click on the Janitor and see what he has to say about all this:
See there, he didn't yell at you! Instead, we get a theory that the glowing gems might have some meaning later on! As you ponder what it could possibly mean, head back to Finneus in the Altadorian Archives. You'll want to see what he has to say, as well take a look in the Book of Ages...
Read the new pages in the book (pages 9 through 11) while Finneus ponders why the clues are appearing after the Dark Faerie's defeat. When you're done, head back to the Astronomy Club, for the praise you know you deserve!
Seems youre quite the popular one now! You've found two constellations, and we now have insight onto more of the plot!
All right, we're ready for more stargazing! In order to find this next constellation (the First To Rise), you'll have to activate it first, just as you did for the previous two constellations. To start, you must head to the Restative Tombs again, and then click on the spot I've marked for you below. Remember, the link can be a bit tricky to find, so move your mouse slowly until you find the clickable section!
When you click on the hidden link, you'll see the following:
Now that you've dealt with the Tomb portion, head back to the Hall of Heros, and click on Sasha the Dancer's statue (she's the Cybunny). Next, click on the window behind her:
When you do, you'll be looking down into a garden filled with trees and beams of light. And believe it or not, those beams of light hit the ground in a pattern: That of a certain constellation we might be looking for! Click any one of the dots in the garden (I've marked them for you below):
And once you click, you'll get another glowing constellation!
Next, you'll want to head back to Finneus again, to let him know about the newest discovery. Here's what he'll say to you:
For Steps 20 through 35, please go here.