Could you provide citations for your claims. I've read extensively on the Dead Sea Scrolls and I haven't heard this. I'd like to check it out for myself and add it to my corpus of knowledge should it pan out.
It'll require comparing the Laurence translation with the subsequent translations all the way through Charlesworth's edition (the Dead Sea Scrolls were discovered about midway).
But to give you a flavor of the issues:
Enoch Calendar Testifies of Christ