I have had this problem myself some time back and if I remember correctly it was a problem with the config files. Although you can try editing the files (sorry but I can't remember what I changed to get it working because it was sometime ago) with APEX it is usually better to uninstall, stop all browsers, make sure that all of the software has been removed. I usually do a reboot to make absolutely certain and then I reinstall.
Its really important to follow the APEX installation steps to the letter, otherwise problems like this can occur.
My Apex is up & running I have different demo apps made with it without any problems.
Is something related to ILM application, I have installed the ILM app into apex without problem but when you run it and tried to login nothing happened, no error sound similar a branch to page that is missing
Can you estimate how many tables you have in your database, excluding Oracle-owned tables?
We have a recently-detected defect in the ILM Assistant where database with many tables (something greater than hundreds, I suspect) causes this symptom. If this is indeed the case, we are currently working on a fix. If you don't have a large set of tables, we will need further investigation to determine the cause of your hang.
If the target database does indeed have many tables, then ILM Assistant 1.0 has a problem. We are currently preparing V1.1, which will address the large table count problem as well as fix other minor bugs. If you can hang on, I will have a kit loaded up on OTN within a week or so.
If that is not the problem, we may have to do some investigation. I do know that others have had success at running Apex 3.0 with ILMA, but it hasn't been thoroughly tested.