Instructions
Open the Web browser on your computer, and enter "sorcerers.net/Games/BG/index_misc.php." Remember to leave off the period at the end.
Scroll down to "Baldur's Gate: Tales of the Sword Coast Patches," and click the location link on the right. There are different versions of the patch for the U.S., U.K. and international versions of the game, so pick the corresponding location for your version. The site will play a short video.
Click the "Click here" link, and wait for the link to load. It may take a few seconds.
Click the "BGTalesXX5512.exe" link to download the patch. Click "Save file." By default, Windows saves downloaded files in the "Documents" folder on the Start menu. Open the "Downloads" folder on the left sidebar and click the file to run it.