thetonestarr on 20 April 2011
No, but all your mods were essentially uninstalled from minecraft.jar when you downloaded the update (because you downloaded a NEW minecraft.rar that had no mods and it replaced your old, modded one).
You'll have to wait to fly until the modpack is updated, then reinstall it. Happens every time there's an update. I guarantee you there's going to be another update very soon, so you may not even want to worry too much about it - 1.5_01 will probably disable mods built for 1.5.
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