encryption & backups ???

hi,

installed Vista Ultimate this week but i've read that Vista's file & folder
backup does not back up folders encrypted with EFS (Encrypting File
System)... I wonder why & are there plans to change this in SP1 ???

can i safely assume that Vista's Complete PC Backup & Restore image does
successfully back up & restore EFS encrypted folders ???

i've also read that Vista cannot generate an encrypted backup... would
backed up data from a BitLocker encrypted volume not be protected by
BitLocker encryption ???

any info or good articles on these issues would be appreciated

thanks,

mike.