Are you actually employable? Certifications are nothing without RELEVANT experience, which you don't mention - just a good job history. Do you have at least five years with your last employer? If not, you are lying to yourself about having a good job history.
People have this misconceptions that because there is a job opening, means that it must be filled sooner or later - it doesn't. Let me tell you about an employer strategy I call the "test job".
At my company we've had some openings listed for /years/. It's there in case someone they really want to hire happens to apply. In my industry (aerospace) this is particularly common with engineers. Engineer is a really critical position, we can't use people we don't trust well. We get an intern, or someone about to graduate or just graduated applying for an engineering job. Now, we ALWAYS need engineers, we probably have a half dozen openings right now. But, because of the expensive nature of our work, we'd rather turn work away than just hire any old schmuck to design an airplane exhaust that might ruin our very good reputation. We tell them that we don't have any engineering positions for them, but they get hired as something like "machine operator", "tack welder", "furnace operator", "tooling clerk". While they are doing this relatively menial task, they are tested and then fast-tracked or side-tracked depending on whether they are found to be engineer material or not. By seeing if these people can cope in an actual industrial environment and do at least a tiny bit of actual work, we have some idea if they are right for the job they really applied for. It's a smart practice, because not everyone is engineer material just because they managed to get through a four year or even masters degree in the subject. Colleges don't really DO engineering work, they just explain the information needed to start LEARNING engineering work. I suspect this is true of other fields, IT especially.
Like I mentioned, companies have learned that it's better to be exclusive and turn work away than to try to please everyone and do nothing well. Likewise, they realized it's better to require overtime of the good people you have than to hire crappy people to do a half-assed job, even at a lower rate. To get decent white collar jobs during a mediocre economy you pretty much have to be STELLAR - especially with just schooling and no relevant experience. Send an employer your college transcript if you have better than a 3.0 GPA, with no important gen-eds below 2.0 and NOTHING in-major below 3.0. If it's not better than 3.0 GPA you're probably in for a hard time. Expect to have to start sweeping floors and making coffee, delivering mail and so on, if you want to work your way up. If your overall GPA was below 2.5, consider giving up on your dream and get a job that just requires any degree like a fast-food, retail, or office supervisor/manager job. Better yet, take up a trade, the standards are lower and they pay okay. I made over 60K last year as a machinist with 6 years experience and a two year degree. I'm above average intelligence, but by no means gifted. I'm not tall, strong, or even particularly dexterous. I just tried hard, was fastidious, attentive, careful, showed up every day on time, and rarely said no to OT. Seriously- if you can't even do college well, you need to re-evaluate your potential. Making good money with skills like the IT skills you mentioned (or in engineering) takes a lot of skull sweat and talent, it takes years to get to that skill level.
You may wonder "if the opening isn't filled, what happens with the tasks this opening represents?" Someone does them in their spare time. It's a "test job", not a real position. It's something easy that takes less than 8 hours a day. It's there mainly to serve a role in the corporate ladder, not actually produce revenue. New hires are tested in a lot of ways to see if they:
1 - are retarded, stupid, slow, etc
2 - are willing to work for less than competitive wages
3 - get the work done in the time /required/ as opposed to the time /allotted/
4 - come to work most of the time
5 - come to work on time
6 - come to work sober
7 - lied on their resume
8 - have any interpersonal problems