ratpack1961 said:

The one about Leia knowing her mother really bothered me when the prequels came around and he changed that concept to her dying during childbirth. It makes watching all the films 1-6 together pointless because of the glaring errors in continuity.

I'm sure if Lucas was ever asked about it he would come up with some explanation about Leia using the force etc. But to be honest, I think his "its all one movie" thing is a sham. Ep. 1-3 are the Star Wars films he always wanted to make but couldn't until he had the technology. For him they stand on their own and so if they don't have continuity with 4-6 he's fine with it since he doesn't care for those movies anyway. That's just a guess though.

Leia's use of the word "young" points to her being a toddler and possibly older - not her as a newborn baby. I guess she could have been talking about her adoptive mother, but if so, then the whole scene is pointless because Leia's adoptive mother has nothing to do with Luke. Also, if Leia was able to use the force to see her mother, then why wasn't Luke able to as well? He said he has no memory of his mother. I think having Padme die turning childbirth was a big mistake and could have easily been avoided. She didn't need to die in ROTS since Leia mentions that she died when she was very young - we don't necessarily need to know how she died.