Congrats Dave on your first light image with the awsome 350D.
I like the colors great pic.
Unfortunately the LCD monitor cannot be used as a viewfinder for shooting
To enable Miror Lockup, press the Menu button,use the left/right cross keys to go to the last menu icon, use the up/down cross key to go down to Custom functions, press the set button, use the up/down cross keys to find Mirror lockup, press the set button, press the up/down cross keys to enable, press the set button.
Might be good to also enable Long Exposure Noise Reduction as well while in here.
I hope this helps, i am still learning this camera also and get a kick out of others posting pics using the 350.
Keep em coming.