Here is the WTS belief on cremation:
http://wol.jw.org/en/wol/d/r1/lp-e/102009085
When the Philistines defeated King Saul of Israel in battle, they irreverently fastened his dead body, as well as the bodies of his three sons, to the city wall at Beth-shan. However, the Israelite inhabitants of Jabesh-gilead, on hearing of this disrespectful treatment of the bodies, removed them and burned them, after which they buried the bones. (1 Samuel 31:2, 8-13) At first sight this account may seem to confirm the negative connotation of cremation. After all, Saul too was wicked; he fought against David, Jehovah’s anointed, and died in divine disfavor.
Yet, notice who died alongside Saul. One of his sons, whose body received identical treatment, was Jonathan. He was not a bad person. On the contrary, Jonathan was David’s close friend and ally. Of Jonathan, the Israelites recognized: “It was with God that he worked.” (1 Samuel 14:45) When David learned of the actions of the men of Jabesh-gilead, he praised and thanked them for what they had done: “Blessed may you be of Jehovah, because you exercised this loving-kindness toward your lord, toward Saul.” Evidently, the burning of Saul’s and Jonathan’s corpses did not disturb David.—2 Samuel 2:4-6.
(continuing)...The Bible gives no specific direction concerning what ought to be done with the bodies of the dead. Cremation is not condemned by Jehovah. Clearly, though, funeral arrangements should be dignified and respectful.
Something that might influence a person’s decisions in making these arrangements, however, is the way that the local community views funeral customs. Those who abide by Bible principles would certainly not want to do anything that would cause unnecessary offense to their neighbors. It would also be inappropriate to engage in a practice that might seem to indicate belief in false religious teachings, such as the immortality of the soul. These concerns aside, whatever decision a person might make as to how his own body, or that of another, is to be disposed of is really a personal or family matter.
