package removal

[J.L. Blom]

HI,
I'm using smart v0.50 (fc7 latest update!).
When I start smart --gui it complains like this:
-----------
error: Unsupported scheme: ttp

error: Invalid XML file:
error:   /var/lib/smart/channels/development-debuginfo%%
http:__download.fedora.redhat.com_pub_fedora_linux_core_development_x86_64_debug_repodata_repomd.xml
error:
http://download.fedora.redhat.com/pub/fedora/linux/core/development/x86_64/debug/repodata/repomd.xml
error:   undefined entity ©: line 73, column 18
...
The latter goes on for several channels so there is definitely something
wrong. However, I don't know the program sufficiently to grasp the
meaning of these errors.
Secondly, when I do the menu option "fix all problems" (Edit> fix all
problems in smart --gui) it wants to remove 29 packages, including a.o.
evolution (which I use daily of course). I would like to know what
problems necessitate this removal and and, once removed are they
automatically installed.
Maybe it's important to mention that due to a corrupt DVD my upgrade
from fc5 to fc7 was very troublesome and it still doesn't work
completely correct.

Somebody can give me some clues and solutions?
Thanks in advance
Joep