Well I have some spacing problems on things located in the post bit. Anyone know where and how I can get this back to default?
Here is some images to clarify.
Most likely a <br /> tag. Check the postbit templates for the theme that you are using and experiment around until you get the desired result.
I checked the post bit and post bit classic template and found no extra tags.
Could you provide your forum URL and a testing account?
AdminCP -> Templates & Style -> Your Theme -> Global.css -> Edit Stylesheet: Advanced Mode
Find .menu img and remove padding-right:5px; from the class.