I cannot seem to get aldra to become visible i have tried everything in my power including uninstalling and reinstalling it. If anyone has any other ideas post and let me know please.

There's a link to the unofficial Redemption patch a few posts below. Try the patch. Can't hurt.

i never encountered this in the vanilla game. did you install the game outside c:/program files and there were couple of cutscene triggers in the mines, such as finding the corpse that has been drained, etc. maybe you missed that triggers and that caused the bug

if all else fails reinstall the game and apply the unofficial patch

Do you mean she turns invisible when you first attack her?

If so wait it out, or get some Holy Water and chuck that at her. If a bottle hits her it'll soon wake her up.