I agree with oldhippie on this. If you want to use another translation it might be viewed as odd but that won't stop you from being baptized. The focus of the meetings is not the bible but their bible study aids. That is what they care about. If you can agree with the baptismal questions then you can get baptized no matter what version of the bible you use.
As regarding the "need to get baptized" that is a requirement for Christianity. Almost universally it is done but the method and prerequisties vary amongst the denominations. Some people have many doubts but get baptized anyway in hopes of getting the "prize"