Having trouble access controls from another class... HELP PLZ!!!

[Boy_Narf]

Hello everyone, I have a problem. I have a main class, and a fuel class... in the main class i have 3 radio buttons, a combo box, and a button. Once one of the radio buttons is clicked, I check the index of the combobox. If the index is >=0 then the button is enabled. Here is my snipped of code (in the fuel class)...

public void enableParkingButton()
{
frmMain m = new frmMain();

if (m.rbtnParkingDaily.Checked == true || m.rbtnParkingWeekly.Checked == true || m.rbtnParkingMonthly.Checked == true)
{
q.btnPurchasePass.Enabled = true;
}
}

Basically once the program gets to that first if statement, it completely ignores it. I have been struggling with this for a few days now, and can't really do anything else until i figure this out.

thanx

By the way, I am using visual studio 2008 express edition.