Slide2Unlock PRO v1.05 cant change wallpaper please help..

[guht]

I downloaded the latest version of slide2unlock, and installed it on my HTC Mogul.

1) I connected my phone to my PC using USB cable
2) I browsed my mobile phone through My Computer
3) I went to Program Files --> Slide2Unlock --> Gfx
4) I copied over a custom 240x320 animated gif named Wallpaper.gif
5) I did a soft reset on phone
6) The old default animated Wallpaper.gif still showed up
7) I used file explorer on my phone, and checked to make sure that the new Wallpaper.gif was there. It was the new one!
I deleted the Wallpaper.gif all together, and the old default Wallpaper.gif still appears?! How is that possible? Is it pulling it from somewhere else? Cache? Do I need to change registry setting?

Please advise! Thanks..