Check the version number in the bottom right corner of the main menu. Some re-release CD versions have already been updated to the latest (1.0034A). If you have the original English release (1.0029A) you may be able to download the 10MB patch on another computer and transfer it to the one the game is on by DVD/CD-RW, USB key or even floppies (using a file splitter such as
JR Split File). Some computer and game stores may be able/willing to download patches, as well.
While getting the patch is a good idea if you have the original release, quicksave crashes were not a 'known issue' in the unpatched game, so it may or may not help with that. There are other benefits, though. For example, in a game started in the unpatched version, Finnigan's magic lockpicks are breakable and if you give them to him to complete the quest you loose the stat bonus they provide. In a game started in the latest version the lockpicks are unbreakable (no more need for stacks of normal lockpicks) and you can complete the quest and buy back the lockpicks. Also, Finnigan has a much better selection of inventory items for sale in games started in the updated version.