[doob]

I doubt it.

Both the wordpress blog and the forum are probably both referencing in the same external navbar. Then they are probably doing the same thing with the sidebar (each referencing in the same sidebar code.).

I employ a similar structure on my sites. Take a look on the web for understanding of php includes or server-side-includes (slightly different, but same principle).

With VB you need to define a plugin (probaby other ways too) to define an "includes" statement.

1) You make your common navbar element and host it somewhere on your site.
2) You make a global_start plugin in vb so its accessible from any forum section and call it something like $mynavbar
3) vb uses some odd php equivelent code to emply includes so look up the vb includes method
4) insert appropriate includes code into your vb forums header template.
5) if you look in any of the vb template codes for like forumdisplay or album list, etc. You'll see an entry at the top of the code for $navbar. This is where vb is injecting your navbar, etc...

I'm not doing the heavy lifting here by describing a step-by-step tutorial. But hopefully this will point you in the right direction. Heavy lifting is up to you!
-Doob