Need Expert Advice on AddOns

O.k., I have done a pretty good amount of research on this but I would like some expert advice on some AddOns. Fresh Install of v1.5 installed and just looking to add the following:

1. Column Grid View
2. COWOA (Check Out Without Account)
3. Google Analytics

My main concern is compatibility and getting the right versions of these for v1.5. I am not a pro at this stuff, I have one zencart under my belt, but I know some of you guys/gals have done many of these. Here is what I know about the Addons from my research so if someone could help me fill in the gaps from what I don't know and give me confirmation on what I think I know... I would be grateful

1. Column Grid View - v1.38 is compatible with v1.5. Came across SNAF which shows compatible with v1.5. Which should I use, again my main concern is compatibility?
2. COWOA - can't find a current version of this, but want it badly. Is there something out there that does this compatible with v1.5?
3. Google Analytics - Simple Google Analytics looks up to date, guess this is all I need. Should I use any of the other Google Addons instead or in conjunction with it?

I assume all of these would work well with each other, but hopefully somebody could confirm that for me too.

Thank you in advance for all of your help, this forum has been good to me :D

The Column Grid mod works fine as is with version 1.5.0.

I haven't used either of the others. There's a thread here:

http://www.zen-cart.com/forum/showthread.php?t=183643