I know you're looking to start your own team but as a novice it may be better for you to join an existing one. This way you'll have more experienced players teaching you the basics of team management and tournament paintball in general.
Assuming you decide to start a team anyway, here are some bits of advice I have for you:
1. Don't bother seeking sponsors. At this point, the only sponsorship you're going to get is from team parents. Any paintball company that would "sponsor" you at this level is only going to give you a small discount and expect you to buy exclusively from them. In other words, you're paying them to be an advertisement.
2. Any graphic design or screen printing shop will be able to print names on your jerseys. Google your city plus "screen printing" and I'm sure there will be no shortage of places available. You may want to use longsleeve shirts instead of paintball jerseys to save money. If you can afford fully custom jerseys, my team uses Raza
and they do great work.
3. The Ohio forum has a list of relevant threads for you. Click here
to get a link to the team tryouts forum where you can post tryout information, or contact players that have posted in the free agents thread.
4. If you want to be taken seriously, do not go around random threads making rude or unneeded comments. Prospective teams or players that view your profile may choose not to contact you if they see this kind of behavior.
5. This may seem petty, but the signature anecdotes and "seeking players/team" comments are typically only used by new players. Personally, I would remove that. If I put up a tryout thread, I would probably reject you the moment I see that signature, unless I know you have experience or know someone that has played with you before. It usually means you need a lot of field time to get competitive, and there will be other players that require less attention than you to get a comparable result.
I understand some of that advice was more about using PbNation than running a team, but changing the way people view you here may be the difference between finding a team and playing by yourself. The easiest way to get things rolling is to head out to team practice at the local field.