Patch 1.02 US and EURO for Serious Sam full version
Here is the second patch v1.02 for Serious Sam full version. This patches directly from version 1.00 to 1.02. To install, just click on the exe and it will find where and how to patch. You don't need to have 1.00c patch installed, but it doesn't hurt if you do. Both combinations should work ok.
The USA version is for North America, but also works for Poland and Russia. The Euro version works for all the other territories. The patch is around 5.5MB.