compile a form (.frm file)

Hello ,

To give an intro - am very new to this forum and to the technology VB , C# or .net. I need to make some changes to a existing exe program.
Finding it difficult as am new to this technology. The task came to me on an unavoidable situation. (don't want to explain it as a story !) and its urgent too.

coming back to what i need - there is a simple application which is used for serial label printing. I understood that it was build from a form file.
i do have the form file with me where the data validation source code is there. I need to make a change to that validation save and run the exe with the change effective. But I am not sure how to get it run. I do have VB2008 installed and i can use that as the editor.
I can open the form1.frm file and I did the changes too.
Can anybody tell me how i make it run as an exe with the changes effective...(from VB2008 editor..)

please let me know if my question is not that clear...

Thanks in advance for any help.
-Sreekuax