Brake bleeding problems

[fantom71]

I am in the process of bleeding my brakes and have finally gotten the rears running clear (man, that old fluid was gross). I have now started on the front right side and nothing. Come to find out that the bleed screw (valve?) is plugged (I pulled about 25 in Hg vacuum and it held). While i had the screw out, I tried to get some fluid to flow and nothing is coming out even with pumping the brake pedal several times. Is this normal (on fluid flow without the screw) or do I have bigger problems than just a plugged screw?

Thanks for your help