I am not going to throw biblical texts at you and verses to back up the coming of the messiah in the Torah or the Psalms. However, its 3.30am so you were spot on with the way my statement was worded perhaps a little tired. Back to the cricket.
Your right about the original Hebrew text and not being fluent in Hebrew course I haven't read it. Confused about the old testament being a Christian invention though since the Torah and the Psalms are used in Judiasm.
I think you need to get your history correct, if you read the old testament you will obviously know that Jesus Christ was mentioned a long time before Mary. Its important before you call people mugs it would be advisable to do your research and know something of the topic you intend to slag off.