URI param unwanted passing problem

[eluser]Iván Argulo[/eluser]
[quote author="HarisB" date="1247613289"]You mean controllers for the widgets involved? Each page has multiple.[/quote]

http://mysite.com/app/home/p/525 means:
Folder: app
Controller: home (for sure it will be in application/controllers folder, file home.php, at least it should be there)
Function: p($param).

It doesn't matter if there are widgets (as you call them), but sure there is a controller called home and another one called list...