I too have had the sold out version for many years but despite abandonloader and dosbox, never could get it to work. After reading about the anniversary addition, I came across tombraiderchronicles and found the answer to my vexations. Not only did Glidos allow me to play the game (and with the audio restored no less) but it pointed toward TRX. My joy rose exponentially as I not only managed to get my hands on Lara (ooh err, matron) but guide her through some particularly stunning landscape.
Thus far, I've only tried Gambit's pack and Antonijadis' mansion but I was keen to finish the game before trying anything else. I am particularly fond of the way gambit's textures are true to the original but inject more historical life into the tombs.
So that's my two bit's worth. Thankyou all for allowing me to not only play but experience more depth.
E.S. perhaps a guestbook of sorts at the main site would garner more feedback. Most people are far too lazy to log onto and register at another forum. They're all too impatient to try out all the new textures.