We're really only interested here in the current development utrace code. The version you get in RHEL5 is a few generations old, and for using that source yourself, you're pretty much on your own. We've gone through a few rewrites since then, and for good reasons.
If you are using actual RHEL5, you can go through your normal support channels for help on that. I don't know off hand of anybody who wants to help you with support for using RHEL5 kernel source built with a set of options different from what RHEL5's own builds use. For kernel developers, that is a really ancient kernel now. For enterprise support folks, changing big important config options for rebuilding from the stable old kernel's source is outside the scope of "stable" and "support". Thanks, Roland