i'm really struggling with this...I have a couple of 9 and 10 second video clips that I want to use and the template I'm using only has placeholders for a little over 4 seconds. Is there a relatively easy way to change the timing of the particular portions of the template where I want to include longer video clips? Thanks, in advance!
That would require to know the details of the template project.
As Mylenium says, knowing some details about the template would help. One solution is to split your video files halfway through so the first couple of seconds is the first part of your video and the second half of it is the last part of your video. Render that out and then use Premiere and cut to fullscreen versions of your video in the middle of each section then cut back for the transition to the next one.