Hi Oscar,
Sadly only the ccmadmin can setup BLF/SD even in CUCM 7.x.
Here is a reference to this fact;
Unified CM Speed Dial Presence
Unified CM supports the ability for a speed dial to have presence capabilities via a busy lamp field (BLF) speed dial. BLF speed dials work as both a speed dial and a presence indicator. However, only the system administrator can configure a BLF speed dial; a system user is not allowed to configure a BLF speed dial.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/7x/presence.html
Hope this helps!
Rob
PS: You are one of many people that I have seen wanting this feature. I would encourage you to work with your Cisco SE to open a PER (Product Enhancement Request)