Electronically, I think this question is in the wrong category.

according to many britian was going to support them until Lincoln said he would free the slaves, after that britain could not intervene without making it look like they suported slavery

Britain and France would have supported the Confederacy if they were convinced it would win. They were close to recognizing the Confederacy but the Battle of Antietam which was a strategic victory for the North caused them to withhold recognition. When Lincoln issued the emancipation Proclamation, France and Britain felt they could not support a country with legalized slavery fighting a country which outlawed slavery, since UK/France abolished slavery long before the Civil War. If they had supported the Confederacy and the Union forces won the war, France and Britain would have made a dangerous enemy : the reunited USA.

The only nations that actually supported the Confederacy were the Cherokee nation and the Vatican. The Pope actually sent Pres. Davis a crown of thorns. England and France were afraid that the Confederacy would lose. Lincoln issued his Proclaimation freeing the slaves in occupied southern territory for two reasons. First he wanted to make it unpopular for England and France to support the South. Another reason not known to many, Egypt had a bumper crop of cotton and was able to supply cotton to the textile mills in England which took a lot of the economic and political pressure off England to support the South. England still supported the South but did it discretely, mostly by making warships for our navy.] The CSA Alabama for example was made in England.

"Once the war with the United States began, the Confederacy pinned its hopes for survival on military intervention by Britain and France. The United States realized this as well and made it clear that recognition of the Confederacy meant war with the United States — and the cutoff of food shipments into Britain. The Confederates who had believed that "cotton is king" — that is, Britain had to support the Confederacy to obtain cotton — were proven wrong. The British instead focused more heavily on cotton and textiles produced in India or in Russia, with the French also ramping up production in Algeria. Notably, in the early years of the war, demand for textiles, and hence cotton, was weak. In time, the war and Union blockade of the South caused economic hardship in textile-producing areas of England such as Lancashire, which depended heavily on cotton exports from the seceding states; however, abolitionist sentiment among English workers ran counter to this economic interest in Confederate victory. While the Confederate government sent repeated delegations to Europe, historians do not give the CSA high marks for diplomatic skills. James M. Mason went to London as Confederate minister to Queen Victoria, and John Slidell travelled to Paris as minister to Napoleon III. Each succeeded in obtaining private meetings with high British and French officials respectively, but neither secured official recognition for the Confederacy. When Britain and the United States came dangerously close to war during the Trent Affair (when the U.S. Navy illegally seized two Confederate agents travelling on a British ship in late 1861) it seemed possible that the Confederacy would see its much desired recognition. When Lincoln released the two, however, tensions cooled, and in the end the episode did not aid the Confederate cause. Throughout the early years of the war, British foreign secretary Lord Russell, Napoleon III, and, to a lesser extent, British Prime Minister Lord Palmerston, showed interest in the idea of recognition of the Confederacy, or at least of offering a mediation. Recognition meant certain war with the United States, loss of American grain, loss of exports to the United States, loss of huge investments in American securities, possible war in Canada and other North American colonies, much higher taxes, many lives lost and a severe threat to the entire British merchant marine, in exchange for the possibility of some cotton. Many party leaders and the public wanted no war with such high costs and meager benefits. Recognition was considered following the Second Battle of Bull Run when the British government was preparing to mediate in the conflict, but the Union victory at the Battle of Antietam and Lincoln's Emancipation Proclamation, combined with internal opposition, caused the government to back away." Source and further information: http://en.wikipedia.org/wiki/Confederacy_(American_Civil_War%29