How to see if you preloader is working right

hi. i’m super new to flash, but i’ve been brave and tried to make my very first preloader… anyhow, i was told to put some large pics after it so i could see if it loads right. i did this, but i can’t really tell. i mean, i like see 100% and i put in like 1mb of images… any suggestions? thanks. oh. and feel free to msg me on AIM… sn: wileygoodman