Yes. See the Warhammer Annual 2002. View online.

Yes, the published errata has five separate cut and paste changes for page 116 of the rulebook.

The charging player controls where the skirmishing unit forms into rows (ranks) as you move the charging units in the order in which the charges were declared. Per the updated text and diagrams covering skirmishers and charges found in the errata in Warhammer Chronicles, when the skirmishers are charged the charging unit is brought into base contact with the closest skirmisher model and then the charging unit is halted. The charging unit is not aligned against the skirmishing models. The skirmishers form up against the charging unit as explained in the skirmishing section of the Rulebook and the charging player then proceeds with further charges. Therefore, the first step is to move the first unit that declared a charge into contact with the skirmishing unit. The second step is for the skirmishing unit to form up with its front facing that unit. The third step is to attempt to move the remaining chargers into contact with the skirmishing unit. Note this may result in the skirmishing unit being hit in the flank or rear by the remaining chargers or for the remaining charges to fail.

No. When not engaged in close combat, models in a skirmishing unit must be positioned up to 1" apart so that they are not touching each other.

A roughly man-sized character on foot may join a skirmishing unit. No other characters (mounted, riding in chariots, etc.) can join skirmishing units.

A Skirmishing unit ranked up for close combat should be thought of like a regular, ranked formation for the duration of the combat. The Standard Bearer, Musician, Champion, and any characters must generally be placed in the front rank. However, note that the general Skirmishers rules do not have special allowances for command and character models the way the Beast Herd rules do. The rules for Skirmishers may prevent these models from reaching the front rank, if a model does not have enough movement to reach the fighting line, or if the ranked up formation is not wide enough. In that case these models should be placed in the closest rank to the front they can reach. When assigning placement due to limited space, the Standard Bearer has takes precedence and must bump the other models back, then the Musician and Champion, and characters next. As noted in their respective sections of the Rulebook, character and command models add little or no benefit to a unit if they are not in the front rank. A Standard Bearer will not add +1 to combat resolution, a Musician will not break a tie, a Champion cannot attack, and characters are considered "out of the game" (note that if the enemy somehow engages a Champion or character in a rear rank, they may fight back as normal). In subsequent turns a character, if not fighting, may move to replace a fighting trooper in his movement phase. However, there are no rules for similarly moving command models within the unit if they are stranded away from the fighting line. It is suggested players ignore normal casualty practice, and instead remove killed models from where the wounds occur in the fighting line. During the Redress the Ranks phase, models can be shuffled forward to fill the vacated fighting positions. In this way a stranded Standard Bearer, Musician, or Champion may reach the front rank. Benefits would apply starting with the first close combat phase each respective model is in the front rank.