I see that several new packages are updated. I need to ask (I hope this is the right place) will gslapt take care of this or is it something I have to do manually or what? Thanks!
EDIT: I see it probably should have went to installation and updates.....sorry.....
When you say you 'see' that new packages are updated, are you refering to the update announcements I make?
If so, those packages are in the testing repository, where they will stay until they have been tested, or for at least a month if there are no comments on them.
In order to access those packages, you need to enable the testing repo in slapt-get/Gslapt. In Gslapt, go to preferences > sources and tick the testing repo. Then allow Gslapt to update its database. You can then select from any of the testing packages, which should then be pulled down along with any other required packages.
You can either disable testing once you have the packages you are interested in, or leave it enabled. If you do leave it enabled, be cautious about 'mark all upgrades'. While there is no problem doing so to see what packages are more up to date than the packages you have installed, letting the command execute may well break your system, so you need to be selective.

There is a reason that those packages are in 'testing'...
HTH
paul.