Originally Posted by hpl912
i already tried deleting android market and re-installing and force stop/ clear cache. the prob still there
So the problem is that your status bar is stuck showing downloads, not necessarily the app itself.
Since you said you uninstalled & reinstalled the market, I'm assuming you're rooted. If this is the case, there's an app on the forums that kills your status bar then restarts it, but I'm not sure if it would work in your situation. It was made with the CM7 theme chooser in mind, so it may only work on 2.3. I'm not sure though, as I've never used it. You could also try booting into recovery & wiping your cache & dalvik cache. If you have a root level file explorer, try going to /cache and deleting any downloadfile.apk files you may see. They may be in /cache/download if that path exists.
If none of that works, you could try reflashing your rom over itself. Just wipe cache/dalvik, not data, and everything should remain as it was unless you've made changes to any system files. And if that doesn't work, I'm all out of ideas.
I am assuming that you've rebooted, but if for some reason you haven't, try that first.