[Peter85]

Actually, unless you've mixed up the images and its the first one that shows how your board looks right now, Im not really sure I follow you. :P

But I think I see what youre talking about. It seems like imported_megamoose (or is it imported megamoose?) got such a long name that it really wont fit in the space its supposed to.
Theres really four fixes for this:
1) Change his/her name to a shorter one :P
2) Change the font size of the names (thats really easy to do)
3) Expand the space to the left of the post (where the name and all that is) so its equally large for everyone (wont really look any good as your own posts will have a huuuge white space left to them)
4) Allow the names to do a line break so his name will look something like
imported
megamoose
insted. Not really a good fix either, and it will only work for users that got a white space in their name.

Also, yeah, your style looks a bit white-ish. I suggest that you replace the white with another color (or two colors so it will look more like this board).
If you'd like I can explain how to do that.

As for the smileys, I dont think theres an option somewhere for that so I think that requres a bit of code modification. Not really difficult though, but Im affraid I really wont have time to help you out with that, but perhaps someone else can?