The subject line is more for the benefit of Google than anything else. I ran into this problem running ConfigFramework.exe yesterday during a BizTalk setup on a Windows 2003 SP1 environment.
I actually managed to find the Component Services Security Configuration dialog myself (had a similar experience with something else) – but ended up calling Bill Chesnut who pointed me to this knowledge base article. I actually tried some of the techniques listed but it didn’t work - but re-reading it again I actually missed a step!
Something to try tomorrow.