Timeslines were removed in CS4. See the expert from the DW CS4 help:
I too was disappointed by this, but they tried to remove it before in MX and then added it back when there was a huge outcry. I don't hear the outcry this time though and apparently neither does Adobe.
Any replacement technologies in dreamweaver cs4 ?
Spent a lot of time getting pretty good at Flash, but it's future doesn't look real good.
Very disappopinted that Timeline is not in CS4. How did you resolve the problem of laying photos on
top each other to create a slide show within a single HTML?
Where did you find Dynamic Layers?
Contact me with HELP at firstname.lastname@example.org