Appeal refused for PSW am I banned? V1080786

Need help.
I applied for PSW in 2008 after my Master and was refused because I didn't keep money in my account for 2 months. I made an appeal but the judge refuse. I then made a second appeal to the senior judge and that was refused too.
Because I was taking a professional certificate, I didn't want to live straightaway. My sollicitor then advised me to apply for FLR(O) before the judge decision comes out so that I will still be legal in the country. I did it and my application remained at HO for more than six months.
Meanwhile, I had My professional certificate and did'nt want to stay in the UK anymore. I call the home office asking advice on passport withdrawal. They told me it's easy, just a phonecall and the passport will be sent back. I then told the officer that I will start packing my stuffs and as soon as I am ready, I will withdraw my passport.
But a week later, they sent me a letter asking me to go the UKBA to take my passport and advise me to leave the country on my own will otherwise I will be found and removed.
I went to the UKBA, the gave a form to fill and sign and asked me to come back with a flight ticket. I did it and they gave me a phone number and told me that an officer will handle my passport back at the airport. I asked the officer if this means that I will be banned, he answer no, it has nothing to do with ban.
When I open my passport at the airport, I saw on the top of my expired Visa wrote: V1080786
I don't know what this means. I am working now in my country as operations managers (a very good position) and I am happy with that. but sometime I would like to visit UK, to see my friends and spend my holidays.
I don't know whether I am banned or not.
Or should I apply for a visit visa with no fear.
I left the UK In December 2009, it is been 1 and half year now

Thanks for your help