As the title says this will upgrade the cutscene Liberty City you can see in the mission Saint Mark's Bistro with textures from Xbox version of GTAIII.
Even though you can only see it for a while I found it silly that R* didn't take advantage of these textures to bring up parity with default SA textures.
As a side effect this also fixes some textures that were just black squares in their respective TXDs.

I recommend artginPL's Enterable Hidden Interiors mod if you actually want to take a trip to LODerty City.

Installation:
Either put the TXD files in gta3.img or install modloader and put the LCXbox folder in modloader folder.

If i find anything else I'll update the download.