Hi Sandra,
Yes, you need a moon filter to view the moon, it is far too glarey otherwise
http://www.bintel.com.au/Accessories...oductview.aspx
If the star images look like this
http://legault.perso.sfr.fr/airy_collim_2.gif
It is just that your eyepiece is not quite focused.
With the alignment, if you pick a star that you know, like say Betelgeuse, the red star in Orion, does it "goto" that accurately? If not, the scope is still not aligned properly.
With these goto systems, if you align, and it is only just OK, you can still sometimes get an appreciable error when viewing in opposite directions. Here is some more information for that model.
http://www.nexstarsite.com/AlignmentFAQ.htm
Cheers
Cheers