Just to clarify: When you double click the Home button and see the apps in that bottom row (the multitask bar) - when you press on them, they start to wiggle. In addition, you see a red minus sign in the upper left of the icon. Do you mean that when you press the minus sign, the apps do not disappear from that list on the bottom?
If that is it, what is happening? Do they wiggle at all? Have you tried to either restart or reset your iPad, and then try to remove them again? With what jail break tool did you jailbreak the iPad1 and did you restore from a backup or from new (or did you even remove everything from the iPad before doing the jailbreak). Sorry to have to ask all these questions, but I cannot duplicate that problem on my iPad3 (jail broken) and I'm just trying to narrow down the problem.
If that is not what you mean, could you explain a bit more?
Thanks.
Marilyn