Questions about creating a Tumblr theme

So I've never actually made a website or anything so first of all - if this is like a complete clusterfuck please let me know.

I'm attempting to make my own Tumblr theme, but I can't figure out a few things. First of all, is there a way to order the "Likes" so that the most recent will appear at the top of the page? Right now, they are just ordered randomly. Second, if I "like" a text post, is there a way to expand it (or include a link to the full text) - right now it is just getting cut off with an ellipsis?

Theme is here

Edit: I'm also having some webkit problems. In Firefox the edges of the search bar are solid, in Chrome and Safari they are dotted as they should be (I did include the -moz- tag to round the edges.)