if you put "http://" before you write the site adress, in the dialog box of YA answers, it automatically makes it a link, like this: http://www.castlepr.com
hope this helps. people are lazy, and rarely cut & paste, just to find out more. make a clickable link and they will.
ok to the critics...
the brown background, bleeds into the brown site background. (visually). your site is a fixed 800x600 screen res, centred in the various size browser windows. The colour of the browswer window background, and the actual site is the same. big mistake (in this instance). Too much brown! only black usually works doing this (or the standard white).
Depending on the nature of your site, and the security of the adress you give (not your home one!) a web address needs a physical one, to give confidence. The site has no proper contact details. if you have a shop, fine, as its not your home address, but anything above a blog (ie, commerce) needs some sort of physical adress, even if its a p.o box (£60/year) or a virtual office (from £20/month) to give confidence.
Thats the first two "biggies" i can see. hope this helps. It should be easy, in the template menu, to change the background colour.
actually...if you like the brown, you could try and loose the border (the white frame) and the white button bar, then the site would bleed into its background nicely, just leaving the text "centred" and standing out. (you would have to change the button bar's 'background' colour to the same brown. if left white it would stand out, as a "800x600" template.)
i see on the site, "in8" gets a credit. Ive just checked in8.co.uk....i hope you didnt pay those prices?