Hi IW.
The advice from The Dispute Resolver was sound, good advice. However, the first question that I would ask is What have you done so far? Unless anyone knows this, you cant really answer your initial question.
Useful observation you may want to consider:-
The web site itself is great looking and very professional. If I can make a suggestion Ask your self what makes you different from any other design company
I checked the view source and it seems that you have covered everything on keywords, title, description etc
however, if I was a customer and I came onto your website, I would be looking for something that catches my attention immediately.
What Im saying, is that, I would be looking for the PRICE. I believe for your kind of company, this needs to be on the home page. Maybe a before and after page as the second page. The price would either hook me or make me move on.
The actual home page looks good, but, there is a problem. When I went onto the home page, because the main picture took up my whole screen I moved onto the next page. I then eventually came back to the home page and only then did I scroll down. The reason, I scrolled down was because I thought I was going to see an address or something along those lines and to my amazement I found all the other stuff starting from Hello there
..
Its just an opinion, but you may want to reconsider relooking at this. I am talking from a totally unbiased point of view and was looking at your site in much more detail then a client would have.
A suggestion is look at the person who designed our website at propages.co.uk. My companies website addresses are : publicadvice.co.uk or wetherbys.net.
To answer your original question, basically, it is as simple as register with HMRC and start. If you intend to employ people, then you must be careful to do this properly.
I havent checked, but, I assume you have registered on all the free online directories. The standard ones I assume you are already one are the ones such as yell.com, smallbusinessdirectory, freeindex, hotfrog, qype, scoot etc. The next one is very important as it will get up on the front page of google CYLEX. If you havent registered get yourself on these asap. If they phone you to upgrade you, just be polite and decline there offer and say that at this stage as you are just setting up and cant afford to upgrade.
I hope this information helps. If you did find any of this useful, please let me know and if you need any further help, please do not hesitate to write. There are lots of people here that will kindly give you some great advice and not look for anything in return. Obviously, business IS always appreciated! Lol.
Good luck
Public Advice - Josh