ok so here's where I'm at: I have badges 1 and 3 and I saved the bird for brainy. but the problem is idk where mr. brainy went and I know I need to sail with him in order to get to the gym giving badge 2. so what I'm asking is where is his cottage? can someone help me plz?

ddeltaroxx :
If you go back in the direction of bug forest, there is a new wway to enter it on the right side (close to the lass).

thx for that bit you were alot of help. now I'm stuck on finding dive and the 8th gym.

I can't find the new way i rescued the old geezer

Benner86 : Follow lukyhawks walkthrough on YouTube. Search his channel "lukyhawk" and go to his ruby destiny walkthrough videos. He shows you where to go and find to old man. He didn't finish the full walkthrough of the game but he does cover a decent chunk it.

As for people looking for hm dive:

Go back to the area where the Safari Zone is. If you've beaten the Darkness group at Mt. Pyre already, the area south from the cave that the Ranger was blocking is no longer blocked. He will now let you pass through to the next city. Beat the gym leader to allow you to use hm dive. Then go to the left woods portal and head left until you reach a cabin. Enter, and you will find Ash. He will give you hm dive. Feel free to enter the cave outside, although there is just a trainer and a troubled Krona telling you she cannot continue through the cave because a Pokemon is blocking the way. Continue through and it will teleport you outside again once you try to approach it. Then head back to the city. There will be another woods portal on the right. However it is just Ash who then leaves again. I'm not sure if you're supposed to go there yet or if that's supposed to be later in the game. Anyways, go back to the Safari zone and head east using surf. You'll eventually find the correct spot to use dive. Your welcome.