You will now be presented with one or more files, categorized as Main files, Updates, Optional files, Old files, and miscellaneous.Once you've found a mod read the description, then click the Files tab.From here you can browse the categories, new or newly updated files, top files, use the advanced search, search by tags, or browse the Files of the Month. Finding mods can be done in various ways found in the Files drop-down menu on the top of the site.
This tutorial will take you step-by-step through the process of downloading mods from Nexus Mods.