It's a bitch to have to type ?style=mine or ?format=light behind addresses all the time, you should get a button that does it for you. (You can get the code for that and instructions for how to implement it here (http://tvm.livejournal.com/188514.html). The only code given is for style=mine, but to get a format=light code just substitute format=light in for style=mine at the end of the code.)

Also, ?style=mine should work for seeing entire journals as well...can you see this (http://ifyouweremine.livejournal.com/?style=mine)? It's a link to my journal, but it should show up in your journal layout.

(Sorry for the edits, BTW!)