Ouch Dahlia thats quite a BIG font
ECO means Entrance Clearance Officer
please check ,read understand the link for the required documents... http://www.ukba.homeoffice.gov.uk/vi...ors/documents/
.... to be quite honest i dont understand why you want to visit an unknown friend/disable for only a month?
its easier,safe and cheaper for you if u let him come visit and meet you.