Guest Posts (name field and Captcha)

This is a two part question regarding guest posts.

1) Is there a way to increase the maximum characters guests can input when they're posting a reply? On my site at the moment it will only allow 8 characters max, and I would like to allow more flexibility than that if possible.

2) When a guest posts, is there a way to eliminate the Captcha (confirmation code) requirement? I do realize it's a wonderful feature made to prevent bot spam, but I'd like to only add that feature if bot spam becomes an issue later. I'm concerned it may turn people away when I'd really like to see more guest comments.

1. Sorry nope.
2. Nope, sorry this is installed by Forumotion.

1) ouch
2) ouch again

LOL!

But thank you for the answer, MrMario! No wonder I couldn't figure out how to implement these two things. It will feel good to move forward knowing my limitations. I really appreciate it.

*Solved ty