I purchased software back in 1999 and the company where I bought it has sent me an email with an unlock code. But when I try it, it does not unlock my software. I have contacted the seller and a lot of emails went back and forth but they cannot help me (or they don't want to?). They tell me I have an old version and it is not supported anymore. But I really want this version since it has some feautures newer versions don't have. Can anyone help me?