Theme Switcher Plugin not working…

I just installed the Theme Switcher Plugin because the skinning on my site didn’t work after I installed WP. I have 4 themes up right now (2 default and 2 of my own) and three of them work perfectly fine. The other one (one of my own ones), doesn’t work at all. Every time I click the link to swich to the “Faded Lily” theme (the one that’s not working), I get the “Starry Night” theme instead (the one that I made that is working). Can anybody help? Thanks!