Hello! I am drawing an internets comic and everything is going well, except for one thing that is not going well. Here is the thing: I got a subfolder on someone's webspace to put my comic's website, so it's currently residing here: http://www.jenniedusheck.com/galactopticon/

And it has pages whose URLs look like this: http://www.jenniedusheck.com/galactopticon/cast/

All well and good. BUT. I decided it was time to buy a domain name for it, so I did. The website can be accessed at: http://www.dullahan-comic.com/

Okay! The problem is that if I click any of the nav links (like, say, "Cast") I get taken back to the jenniedusheck.com/galactopticon/ URL. If I try typing in http://www.dullahan-comic.com/cast/ or something like that, I get an error. So, I'm sure this is something that's really easy to set up, but I have no idea what to do. How do I make it so all the pages show up as part of the dullahan-comic.com URL instead of jumping back to jenniedusheck.com/galactopticon/? tia

I can't help you, but I would like to say I find that comic pretty cool.
E: Hold on, your stated link for "Cast is "http://www.jenniedusheck.com/galactopticon/cast/ " but the second time you post it in the third paragraph you drop the galactopticon part (http://www.dullahan-comic.com/cast/) perhaps this is a typo? Maybe for some reason it's looking for root/galactopticon/cast instead of root/cast?
E2: Nope, I'm dumb. I guess I really can't help. I can however point out things I know nothing about, it's a start!

Thrawn: it's doing exactly what you told it to do. Wordpress still thinks your domain name is jenniedusheck.com/galactopticon/ and so it's making all the URLs that way. You need to tell wordpress your URL has changed.

This should also fix the Internal Server Error, but it might not. Hard to tell without actually seeing what the error is (check the apache error log, or whatever you have available via your webhost).

Great, it all seems to be working properly now. Thank you!

Thamkz to you also, Tibby, for the compliments!

Is the raptor looking dude supposed to look like one of the star wars species, it was in a book but I forgot it's name, they had weird machines that used souls for power (lol)