iOS Formatting Subviews

[BrooklynDon]

First off, let me say that this is my first post on this forum. I am a newbie to iOS programming, but i'm learning.
Here is my problem: my main screen works in both landscape and portrait modes... here is the .m code:

#import "DownstateViewController.h"
#import "aboutDownstateViewController.h"
#import "AboutThisAppViewController.h"
#import "downstateServicesViewController.h"
#import "searchDownstateViewController.h"

//variables commented out to save space

aboutDownstateViewController *viewController;

//create the orientation views (Portrait and Landscape)
-(void)positionViews {
	UIInterfaceOrientation destOrientation = self.interfaceOrientation; //Get the presengt orientation from the device
	if (destOrientation == UIInterfaceOrientationPortrait || destOrientation == UIInterfaceOrientationPortraitUpsideDown) {
		//Show Portrait Mode
		downstate.frame = CGRectMake(0, 0, 321, 175);
		welcomeToDownstate.frame = CGRectMake(30, 190, 261, 45);
		aboutDownstate.frame = CGRectMake(20, 266, 117, 50);
		downstateServices.frame = CGRectMake(20, 324, 117, 50);
		searchDownstate.frame = CGRectMake(183, 266, 117, 50);
		aboutThisApp.frame = CGRectMake(183, 324, 117, 50);
		redAlert.frame = CGRectMake(0, 427, 320, 33);
		alertMessage.frame = CGRectMake(66, 5, 196, 21);
		copyright.frame = CGRectMake(26, 408, 268, 21);
	} else {
		//Show Landscape Mode
		downstate.frame = CGRectMake(149, 0, 186, 101);
		welcomeToDownstate.frame = CGRectMake(110, 102, 261, 45);
		aboutDownstate.frame = CGRectMake(101, 145, 117, 50);
		downstateServices.frame = CGRectMake(101, 203, 117, 50);
		searchDownstate.frame = CGRectMake(264, 145, 117, 50);
		aboutThisApp.frame = CGRectMake(264, 203, 117, 50);
		redAlert.frame = CGRectMake(0, 267, 480, 33);
		alertMessage.frame = CGRectMake(152, 5, 196, 21);
		copyright.frame = CGRectMake(107, 249, 268, 21);
	}
}

-(void)willAnimateSecondHalfOfRotationFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation duration:(NSTimeInterval)duration {
	[self positionViews];//set and animate the new position view
}

//Set up the button clicked actions
//Showing just the 4th button for clarity

-(IBAction) button4Clicked: (id) sender{
	viewController = [[AboutThisAppViewController alloc] initWithNibName:@"AboutThisAppViewController" 
																	bundle:nil];
	[UIView beginAnimations:@"flipping view" context:nil];
	[UIView setAnimationDuration:1];
	[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
	[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft
						   forView:self.view 
							 cache:YES];
	[self.view addSubview:viewController.view];
	[UIView commitAnimations];
}

When it goes to "About this App", I can see it well in landscape mode, but I get this in Portrait mode:

And this is the "About this App.m" code

#import "AboutThisAppViewController.h"

//Again, variables commented out to save space

-(IBAction) btn4Clicked:(id) sender{
	[UIView beginAnimations:@"flipping view" context:nil];
	[UIView setAnimationDuration:1];
	[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
	[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight 
						   forView:self.view.superview
							 cache:YES];
	[self.view removeFromSuperview];
	[UIView commitAnimations];
}

-(void)positionViews{
	UIInterfaceOrientation destOrientation = self.interfaceOrientation;
	if (destOrientation == UIInterfaceOrientationPortrait) {
		header.frame = CGRectMake(0, 0, 280, 21);
	} else {
		header.frame = CGRectMake(100, 100, 200, 21);
	}
}

-(void)willAnimateSecondHalfOfRotationFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation duration:(NSTimeInterval)duration{
	[self positionViews];
}

I would like to show this app in both the landscape and portrait modes. What am I doing wrong in the "aboutThisApp.m" program? TIA