The GRSS doesn't currently record the roll numbers for posterity for the upload, it just takes care of rolls during the rolling process, but once they're cleared, they're gone forever.
Also, unfortunately, the GRSS doesn't record how many items an individual has gotten that day, at least not in an easily queryable manner, like how you need.
That said, the items do get recorded, and as long as you upload the GuildRaidSnapShot.lua file (from the WTF folder) at the end of your raid, your item history and snapshot history for that night should be imported to your site.
Thanks Chops, that answers most of the questions. Now do I need to setup the loot system on our web page in a special way since we're not using DKP. Never had to setup or loot system on our page before so I have no idea what I'm doing. Is there any type of walk through for setting up the loot system without DKP?
Now do I need to setup the loot system on our web page in a special way since we're not using DKP. Never had to setup or loot system on our page before so I have no idea what I'm doing. Is there any type of walk through for setting up the loot system without DKP?
Not really. There's not much to do by way of initialization if you're not tracking points. If you want to track attendance, then I recommend initializing the Destinations, that way you can get more detailed information about attendance. But as for configuring, there's not much you need to do. Items will get initialized as they are captured by the mod (as they are received).