Is it possible to mod vB5?

[In Omnibus]

There are so few coders actively working on third party modifications for vB5 it would be difficult to even recommend one with whom you could speak about your specific needs. It's extremely easy for someone to claim they know what they are doing and take your money. My advice would be to require anyone you hire to provide a working product or products before you pay them. I also don't believe for a minute that you should pay for a product which is not compatible with minor software version upgrades. I could see a product not being compatible with a major version change or with a major change to PHP or MySQL versions but I'd be leery of any developer who told you that you could never upgrade your software. That's really all I can tell you.