Jamaat Salaah and Imaamat

Should the Muqtadi complete his attahiyyaat and then stand up or should he follow the Imaam

Q: To recite attahiyaat is waajib in the 1st sitting of 4 rakaats Salaah. If it is missed then sajdah sahw becomes waajib. Sometimes the Imaam recites the attahiyyaat very quickly and then stands up whilst many muqtadees have not finished their attahiyyaat. Should they follow the Imaam immediately or should they complete their attahiyyaat and then stand? 

Are Ladies Permitted to stand in the saffs of the men in Jamaat Salaah?

Q: Are ladies permitted to stand in the saffs of the men in jamaat salaah. In Bahisti Zewar under the section "Prerequisites of Salaah" there is a masalah that says that the Imaam must make niyyat for a woman who intends joining the Jamaat Salaah if she is standing in line with the men. However if she is standing behind them, then the Imaam does not have to make niyyat for her. This masalah seems to show permissibility for the women to be in line with the men?