The problem with the timers is definitely a X10 problem - not a phase problem. On the WS467 and WS4777 to set a timer you must first set the timer to trigger an appliance module with the same address as the light switch you want to come on. Then set your light to dim 2-5 seconds after that (if you want dimmed). The switch will then work as wanted. Maybe X10 will have a fix for this soon?
As you indicated, it sounds like you have one of the "new" WS467's. These units have a documented flaw in that they will not turn on in response to a "bright" commands. You are getting around this by using the appliance module interface that transmits "ON" commands.
Check the setting under the menu item "tools" - "preferences" - "macro options". Make sure that the option "issue on in place of bright 100%" is checked. This will allow the WS467 to turn on without the appliance module bypass that you've used.
This will not completely fix the interface. The best fix that has been identified (by
Charles Sullivan) is to use the LM14a appliance module interface. Have a look at the links I provided earlier. Charles has a nice write up on how to implement this.