Legal Question in Wills and Trusts in Texas

If you know the attorney that prepared the earlier Will, and if they're willing to provide you with a copy, then you can certainly ask. But, I wouldn't hold my breath. Assume for a moment that your mother used the same attorney. The later Will revokes and replaces any prior Will. At that point, the attorney has next to no reason to even keep a copy of the revoked document.

Your larger issue is that the 2008 Will has already been admitted to probate. From the time that this document was accepted by the Court as your mother's Last Will, the clock has been ticking on any sort of challenge to the document, which I presume you're interested in exploring. At this point, even with the 2003 Will in hand, you're facing an uphill battle.