Brandon - I sent you a private Email.

Muriel

How can I get a true reading when my birth date and time are unsure.   My mom says 11/6/62...  about 8:30 pm,  dad says  he's not sure...  

My mother nearly bled to death and in the medical panic, the paperwork for my birth was not filled out until the morning shift came in..on 11/7/62...so she says, das is unsure, and says mom was to drugged to know..so I don't know what to believe... any ideas??

Brandon, what you were reading about is the Procession of the Equinoxes, in which the Signs that occupied the a particular spot on the globe during the two Equinox points have changed over the millenia.  This particular Zodiac is the Sidereal Zodiac used in Vedic astrology, wherein the Zodiac is set against the backdrop of far away, Fixed stars.  The Western Zodiac system which basically ignores this Procession has the Zodiac set around the Earth, on the ecleptic.  It really just depends on what system you want to sell yourself to, for a lack of better term.

Terrisue, there's really not much you can do, except get a rectification service.  You can use the chart suggested by your mother as a good starting point, though.