session.name

Hey All, Here's another one under the "Fun with Sessions" heading... I'm a convert from ColdFusion, where I used sessions extensively. I have just begun to play with them in PHP. Reading the docs, I've decided against setting the --enable-trans-sid, in favor of lower overhead and accepting responsibility for passing the session id. My questions: Is passing ?PHPSESSID=$PHPSESSID the same as using the =sid flag? It seems more reliable. I'd also like to rename the session.name parameter in php.ini, to something shorter and hopefully unique to my sites. I have changed the session.name value in php.ini and restarted apache, yet echo($PHPSESSID) still returns a value, while echo($MyNewShorterName) does not. Bug? Cluelessness? DumbIdeaAnyway? Help! J!M