Quoting prove_it:
They will work, stock retainers are good enough for most power applications. Look around on the EVO sites, you might be able to find some EVO retainers which are lighter and stronger than Stock DSM retainers, but can be had for cheap. Otherwise I think BC sells their retainer kits for a decent price.
Evo retainers and OEM stockers are designed for different spring types. You ca not interchange one for the other. If the springs you bought are 'beehive' type then you will need Evo style retainers, if they are stock style, then you will need the stockers or ones made to replace the stockers.
Edit: Pic uploading is being uncooperative- I took a couple pics of the two next to each other. Will upload when it's working again.