Hi Faraz,If you have one pheed working and one that isn't, the most likely cause is your site's pheed doesn't verify and has an error in it.
Also, what happens when you test it in the BlogBomb admin? Click on the "ssi" link for the particular pheed. If you see results there, then the problem has something to do with your SSI tag.
If you don't see results there, then the likely problem is a faulty RSS pheed that doesn't verify. BlogBomb is very picky and won't show results if the pheed doesn't verify.
Run your site's RSS URL here:
http://validator.w3.org/feed/