1) No, starting with starters only. You could catch an Eevee at some point though, and you don't have to keep your Pokemon inside their balls if you don't want to.
2) Not really. All knowledge you need, can be found at Serebii. You just need to know what moves your Pokemon will have, that's all. Plus since fifth gen Pokemon will be in the RP (alas, I haven't found a good excuse to exclude them, plus it'd probably put people off...) it might be an idea to know at least what they look like if they're being used.
2) Not really. All knowledge you need, can be found at Serebii. You just need to know what moves your Pokemon will have, that's all. Plus since fifth gen Pokemon will be in the RP (alas, I haven't found a good excuse to exclude them, plus it'd probably put people off...) it might be an idea to know at least what they look like if they're being used.