CSS Changes to adjust the look, help please.

Hello! I recently made some CSS changes to my forums, and MOST of it came out okay, however, there are a few things that changed that I don't know what I did or how to fix.

The forum is phpBB3 version.

I'll provide the pictures for each one. If anyone can offer assistance to let me know which code I need to change, it would be greatly appreciated!

1. The lines between the Topic, Post & Last post do not continue down all the way to the bottom of the row. How can I fix this?

2. The "Last Post" block doesn't extend to the end of the row, leaving an additional line showing, and I'd like to extend to the end of the row.



3. The "Replies" aren't lined up correctly, and the block line for the one (shown in picture) is too far over. Does anyone know how I can fix this?



Again, thank you in advance to your help!

Take care.