Be very cautious of sites offering "Key Generators" or "Cracks" for Vegas 8.0. Because this software is so old, many of those downloads are now bundled with outdated malware or browser hijackers.
A vast majority of downloadable tools claiming to generate authentication codes are wrappers for malicious software. They can infect your system with trojans, spyware, or ransomware. Sony Vegas Pro 8.0 Authentication Code
If you are receiving "Incorrect Code" errors or are unable to connect to servers: Be very cautious of sites offering "Key Generators"
You have a .veg file from 2009. You need to edit it. Here is the workflow: and personal data.
Compromised software can install keyloggers that silently steal browser passwords, banking information, and personal data.