I havent been able to get on the ps store for sometime everytime I click on it, it seems to pop up some shopping market catalog full of advertisements
Is it on the PS3, the PSN store?
Have you installed the latest updates on your PS3?
Have you restarted your PS3 lately?
Can you connect to PSN sign-in? Can you download from Download List in Account ... on XMB?
You can do this: Online (on a pc in the browser) - You can shop for games on the computer, buy, then download via the Download List on your PS3 as a work-a-round.