Sorry guys. I just realized there are a few windows in the house with the original guides intact. I'll photograph them and post them tomorrow.
I have used this hardware to fix Likit windows exactly like the ones pictured. The new guides look a little different than the originals, but will work fine. The small tabs are meant to slide into a slot next to the rail and then the aluminum frame is bent slightly to hold the tab in. I found that the new ones were slightly loose and they would not stay in place. So, I used a hot glue gun to hold them in. They were installed this way on all the windows in a rental building about two years ago and I haven't seen any failures yet.
Our home was built in the early 70's, and we have since replaced many of the original Likit windows. However, we still have a number of them that have not yet been replaced for various reasons.
I have been looking for window guides for quite some time, and I am very pleased to find that Swisco is carrying these window guides. They fit perfectly! Just un-pinch the area on the aluminium frame where the downward pointing tang on the plastic guide would go, clean out that area, press in the new plastic guide, re-pinch the aluminium frame, and Voila! I did add a bit of hot glue, just to make it a bit more secure, although it may not be necessary. Good Luck!