First off, allow me to welcome you to CZ Forum! It's a great place full of better times and people!
Next, unfortunately I don't have a quick answer to your problem, but I wish I could help. I want a 97 above all other pistols right now, and if I had one, I would let you use my extra mag. CZ's are (in my opinion, which is a fact
)the finest pistols in the world, but since not everyone knows this yet, they aren't always easy to come by. If CZ doesn't have them, you may be hard pressed to come by more mags for a while. However, they are out there. Check Buds and Guns America, etc. As for the non-functioning aftermarket mags, the only suggestion I can make is to put them next to the factory mags, see what is different, and adjust accordingly. It's usually follower angle or the angle of the bend on the mag lips. You didn't mention exactly what the problem was with the aftermarket mags, but maybe you can adjust fit to obtain function.
Wow... A quick google check confirms that no one on earth has those mags in stock... Keep calling CZ, check more obscure outlets, and, if you'd like, I'll keep an eye out for local sales in my area. Networking, Baby!
Again, welcome to CZ Forum, and I hope you stick around. I would LOVE to hear what competitions you're entering with your 97 and how well she performs!