Don't worry. Just click on the Forgot Password button next to the Sign in option. WedJobs will send you an email from which you can recover your password.
Yes, to find the right job for you, you will need to provide your Profile details and a resume. Make sure to include details that are relevant to the job you have in mind.
When you search for jobs on WedJobs and are interested in them, you can shortlist them. This allows you to apply for them at a later time also