are you talking about ivans-apn and 3dpatch? The first one is to fix broken mms in the rom. if yours isnt working, search apn backup in the thread, it will tell you how to use it because i dont think its a flashable zip.
the 3d patch is to enable live wallpapers on the rom. this is a flashable update but if you flash this patch it will break your weather animations from the htc homescreen clock. if you want both to work, you can copy an egl.cfg file from evil eris rom and that fixes everything. search egl in the thread and it tells you how to make it work and has a link to download the egl file.
For your rosie, you can change to the blue one by downloading v12 (i think, or might be snow version) and pulling the rosie from that rom and pushing it to the system/app folder. To get it to work tho, you need to set the user permissions on it by using root explorer or a chmod command from adb. long press the file in root explorer to set permissions after you have copied it. This is how i got the blue phone icon with my v11 aloysius