a few specific ROM issues

---

i have been compiling my own ROM using the available tools. it is almost at what i would call perfect, except for a few issues that i am unable to solve. any knowledge and help would be highly appreciated!

1) in the Control Panel, i would like to remove the following items:
encryption
managed programs
usb to pc

2) setting the IE homepage: I have set (by adding to an .rgu file)
[HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Abouturls]
"home_0409"="http://www.google.com/m/classic"
[HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Abouturls]
"home"="http://www.google.com/m/classic"
but no matter, after i flash, it always goes to "http://mobile.htc.com"
obviously my settings are being overridden elsewhere, but i have searched for hours and have not found where from.

3) i am trying to delete the registry entry:
[HKEY_LOCAL_MACHINE\Comm\InternetSharing]
"Extension"="Rilphone.dll"

i have placed in an .rgu file the following entry:

[HKEY_LOCAL_MACHINE\Comm\InternetSharing]
"Extension"=-
but no matter, the first entry is always present after flashing.

4) i cannot figure out where the Resco Explorer registration info is located so i can have it registered from the start. i have search and found that i am by no means not the only one with this problem, but no one has reported success.

5) i am using the Vista Cube, and somehow the name entries for the "email" and "sms" tiles have been switched. once, again, i have placed correcting entires, but they are apparently being overridden.

other than these issues, i have created my perfect rom! if anyone can help on any of these, please do report. thank in advance.

P.S. i have posted the same here and here.