Yes, technical support at the forums is free - but technical support by eMail is not free.
May I use CBE at work, or in a commercial project?
Yes, you may use the libraries in your business projects, even if that project includes proprietary code, but the X and/or CBE library must retain its LGPL and free status. See the license for details.
May I modify the library?
Yes, you may modify and/or extend the libraries, but the resulting library must retain its LGPL and free status. See the license for details.
Do I have to give you credit?
There is a copyright and license statement at the top of each source-code file. Please leave that intact. A link back to cross-browser.com would be very nice but is not required.