Thought I logged into a powerade ad. Light blue fonts and theme colors make the content difficult to read. I liked the older scheme.
More than a little funereal. Looks like Traders Laboratory. I assume you don't want that. I like the logo though.
Otherwise, if you're trying to modernize, provide modern chart posting capabilities, WYSWYG text, and permalinks to the posts. That'll make a bigger impression than the choice of color.
Unlike everybody else, I like the new color scheme. Need to add "Home" back to the navigation bar at the top, though. Now play with some fonts. I'm fond of Myriad Pro myself... Which version of vBulletin is this? Note, you should probably rename the /vb subdirectory or put a RewriteRule in your server config so you're not a sitting duck for any automated VB exploit out there in the wild...
Baron, the old colour scheme was special. It had a warmth to it that no other board I visited had. Modernity does not mean we have to abandon classic elegance. Please revert.
And you've lost Home on the menu bar. Bet you not everyone knows how to navigate to Home without that.